Place them so that air can freely _________around the back. A. circulate B. diffuse C. distribute D. disperse

题目
Place them so that air can freely _________around the back.

A. circulate
B. diffuse
C. distribute
D. disperse
相似考题

1.As space of our office is limited Is it possible to pile cartons here?A.No. Something more important is expected to be put here So, you’ve got to find somewhere to pile cartons.B.No. This place is not vacant. You mustn’t pile anything hereC.No. This is an emergency exit. You mustn’t pile anything hereD.Maybe you can. If you manage to persuade them to let you pile cartons, you can do that.

2.The traffic is heavy this day, I arrive a bit late, so could you save me a place?A. can B. must C. need. D. might

3.The traffic is heavy these day,I arrive a bit late, so could you save me a place? A can B must C need D might

4.we sent the letter by air mail __________ it might reach them in good time.A. so as toB.so thatC. in order toD. in that

更多“ Place them so that air can freely _________around the back. ”相关问题

  • 第1题：

    （B）

    The surprising experiment I am about to describe proves that air is all around you and that it proves down upon you. Air pressure is a wonderful force. When you swim underwater, you can feel water push down your body. The air all around you does the same. However, your body is so used to it that you do not notice this. The pressure is caused by a layer of air called the atmosphere. This layer surrounds the Earth, extending to about five kilometers above the Earth’s surface.

    The following experiment is an easy one that you can do at home. But make sure that you are supervised, because you will need to use matches. Now foe the experiment！

    What you need

    ?A hard-boiled egg without the shell

    ?A bottle with a neck slightly smaller than the egg

    ?A piece of paper

    ?A match

    Metheod

    1） Check that the paper will sit firmly on the neck of the bottle.

    2） Tear the paper into strips and put the strips into the bottle.

    3） Light the paper by dropping a burning match into the bottle.

    4） Quickly sit the egg on the neck of the bottle.

    Result

    Astonishingly, the egg will be sucked into the bottle. Your friends will be amazed when you show them the experiment. But be careful when you handle matches.

    Why it happened

    As the paper burns, it needs oxygen and uses up the oxygen （air） in the bottle. The egg acts as a seal in the neck of the bottle, so no more air can get inside. This reduces the air pressure inside the bottle. The air pressure must equalize, so more air from outside must enter the bottle. The outside air pressure against the egg and then the egg is pushed into the bottle! The proves that air is all around and that it is pressing down on it.

    60. Why is there the need to take care when you are doing the experiment?

    A. The bottle could break.

    B. You need to light the paper with a match.

    C. The egg needs to be shelled.

    D. The egg has to be perfectly placed on the neck of the bottle.


    正确答案：B

  • 第2题：

    Since we can’t reach an agreement on the place where the arbitration is (), so the place ()be determined by the arbitration tribunal.

    A、holding…is going to

    B、to be held...is going to

    C、holding

    D、shall

    E、to be held

    F、is to


    参考答案：B

  • 第3题：

    When hosts place dishes on the table, they will arrange the main course at the center with the other dishes______ placed around them.

    A、evenly

    B、even

    C、odd

    D、oddly


    参考答案：A

  • 第4题：

    I want to buy the place next door () I can expand it.

    A、so

    B、that

    C、so that


    正确答案:C

  • 第5题：

    共用题干
    Tiny Invaders

    The human body is truly amazing. It allows us to sense the world around us,to do work and have fun,
    and to move from place to place.In fact,the human body does its work so well that most people don't think
    about it very much-until they get sick.
    The germs（致病菌）that make people sick are everywhere. You can ' t see them , but they ' re there.
    They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you
    are breathing. There are two types of germs : viruses and bacteria（细菌）.Viruses are germs that can only
    live inside animals or plants. Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny
    creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so
    good. They can make you sick. Bacteria can cause sore throats（喉痛）and ear infections.
    How can you stop these tiny invaders from making you sick?Your skin is the first defense against
    germs.You can prevent some illnesses simply by washing,with soap and water. But germs can still enter the
    body through small cuts in the skin or through the mouth,eyes,and nose.
    Once germs are inside your body , your immune（免疫的）system tries to protect you. It looks for and
    destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs!
    Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind of
    germ.Some antibodies keep germs from making you sick.Others help your body find and kill germs.After a
    germ is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back.
    That way you will not get the same illness twice.
    You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune systerm
    strong. You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are
    medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick.
    Instead,they cause your body to make antibodies.If the same germ ever shows up again,then your
    antibodies attack it.

    The heart contains the body's strongest muscle.
    A:Right
    B:Wrong
    C:Not mentioned

    答案：C
    解析：
    由文章第二段的第七句“Viruses are germs that can only live inside animals or plants.”可知，病毒只能生存在动植物体内，故选B。
    由第二段内容可知，致病菌有两种：一种是细菌；一种是病毒。病毒会致病，但有一部分细菌是良性的，故选B。
    由文章第三段第三句“You can prevent some illnesses simply by washing, with soap andwater.”可知，通过用水打上肥皂清洗皮肤可以预防一些疾病，故选A。
    由文章第三段最后一句中“germs can still enter the body through...eyes and nose”可知，致病菌可以通过伤口、口、眼、鼻等进入人体，故选A。
    文章并未提及心脏含有人体最强健的肌肉，故选C。
    由文章第四段倒数第三句“After a germ is destroyed, the antibodies stay in your body.”可 知，在毁掉致病菌以后，抗体会留在人体中，故选A。
    由文章最后一段内容可知，疫苗是接种到人体中用以抵抗致病菌的；疫苗是一种药物， 故选B。第3部分：概括大意与完成句子

  • 第6题：

    根据下面资料，回答
    Germs are everywhere. You can′t see them, but they are on your desk, on your computer, and even in the air!
    Like people, germs move around the world. They fly with us on planes. When food, clothes, and other things travel around the world, germs travel, too. Some germs are safe, but some are dangerous. Germs cause illnesses like colds and the flu.
    Warmer Weather Brings Germs
    The world′s weather is changing. Cooler countries are getting warmer, so insects from hot countries can move there. Some of these insects, like mosquitoes, carry dangerous germs. These germs cause headaches, fever, and can even kill people.
    Under Your Skin
    Your skin protects you from germs. It stops some germs, but not all. They can enter your body when you eat, or when you have a cut. Germs are on your hands, too. They enter your body when you touch your eyes, nose, or mouth.
    Your immune system (免疫系统) protects you, too. When germs get inside your body, your immune system finds and kills them. Special cells (细胞) move around your body and fight germs. They help you stay healthy. Other cells make antibodies. Antibodies help your body find and stop germs.
    What can you do to fight germs? You should wash your hands with soap and water. Soap kills many germs, and water washes them away.
    Please fill in the blank with proper phrases to complete the title of the last paragraph.
    _______________________________________________________________________


    答案：
    解析：
    Fighting Germs．

  • 第7题：

    WangHong speaks English very well.
    —_.She can talk with Americans freely.

    A.I hope so
    B.I hope not
    C.I think so
    D.I don’t think so

    答案：C
    解析：
    考查交际用语。由“王红英语说得非常好”和“她可以和美国人自由的交流”可知，所缺句子意为“我也是这么认为的'所以答案选C。

  • 第8题：

    （）is the carriage of goods from place to place by air

    • A、Air freight
    • B、International passenger
    • C、Domestic passenger
    • D、Carry-on baggage

    正确答案:A

  • 第9题：

    单选题
    Why, according to the passage, did ancient Chinese coins have a square hole in the center?
    A

    Because it would be easier to put them together and carry them around.

    B

    Because it would be lighter for people to carry from place to place.

    C

    Because people wanted to make it look nicer.

    D

    Because people wanted to save the expensive metal they were made from.


    正确答案： D
    解析：
    推理题。由“People strung them together and carried them from place to place”可知，金属币做成圆形方孔是为了携带方便。

  • 第10题：

    单选题
    —Wang Hong speaks English very well.—_____. She can talk with Americans freely.
    A

    I hope so

    B

    I hope not

    C

    I think so

    D

    I don’t think so


    正确答案： B
    解析：
    由“王红英语说得非常好”和“她可以和美国人自由的交流”可知，所缺句子意为“我也是这么认为的”。

  • 第11题：

    单选题
    A lot of trees ______ around here every year, and we can enjoy fresher air now.
    A

    were planted

    B

    are planted

    C

    will plant

    D

    are planting


    正确答案： B
    解析：
    考查动词的时态和语态。句意：每年这里都会中很多树，所以我们能呼吸更新鲜的空气。根据时间“every year”可知，本句应用一般现在时；又因为trees和plant之间是被动关系，所以应用一般现在时的被动语态。

  • 第12题：

    单选题
    Electrical wiring on all “T-Boats” must be（）。
    A

    concealed to prevent mechanical damage

    B

    concealed so the boat can be maintained more easily

    C

    protected from the weather

    D

    in an accessible place behind the ceiling


    正确答案： A
    解析： 暂无解析

  • 第13题：

    The experiment is carried cut to prove ______.

    A. water pushes on your body when you swim underwater.

    B. the earth is surrounded by a layer of air called the atmosphere.

    C. the pressure of air around us has a powerful force.

    D. the air pressure is not equalized around us.


    正确答案：C

  • 第14题：

    According to Kennedy, the belief still at issue around the globe is the belief that all man are created equal and God has given them certain inalienable rights which no state or ruler can take away from them.()

    此题为判断题(对，错)。


    参考答案：正确

  • 第15题：

    听力原文：If you lose your bank notes, the chance for you to get them back is not high.

    (10)

    A．If you lose your bank notes, you will not get them back.

    B．If you lose your bank notes, you will get compensation.

    C．If you lose your bank notes, you can get them back soon.

    D．If you lose your bank notes, most probably, you will not get them back.


    正确答案：D
    解析：单句意思为“如果你丢失了银行支票，你找回它的机会不大。”

  • 第16题：

    After a server has been installed into a rack, an administrator must ensure which of the following?()

    A. Warm air flow is permitted through the front bezel

    B. The system is labeled so that it can be identified

    C. Verify the change control process can be implemented

    D. Determine the correct power requirements


    参考答案：B

  • 第17题：

    共用题干
    Tiny Invaders

    The human body is truly amazing. It allows us to sense the world around us,to do work and have fun,
    and to move from place to place.In fact,the human body does its work so well that most people don't think
    about it very much-until they get sick.
    The germs（致病菌）that make people sick are everywhere. You can ' t see them , but they ' re there.
    They're sitting on your desk.They're hiding on your computer's keyboard.They're even in the air that you
    are breathing. There are two types of germs : viruses and bacteria（细菌）.Viruses are germs that can only
    live inside animals or plants. Viruses cause illnesses such as flu and measles（麻疹）.Bacteria are tiny
    creatures.Some bacteria are good.They can help your stomach break down food.Other bacteria aren't so
    good. They can make you sick. Bacteria can cause sore throats（喉痛）and ear infections.
    How can you stop these tiny invaders from making you sick?Your skin is the first defense against
    germs.You can prevent some illnesses simply by washing,with soap and water. But germs can still enter the
    body through small cuts in the skin or through the mouth,eyes,and nose.
    Once germs are inside your body , your immune（免疫的）system tries to protect you. It looks for and
    destroys germs.How does it do that?Special cells patrol your body.Some of these cells actually eat germs!
    Other cells make antibodies.An antibody sticks to a germ.There is a different antibody for each kind of
    germ.Some antibodies keep germs from making you sick.Others help your body find and kill germs.After a
    germ is destroyed,the antibodies stay in your body.They protect you if the same kind of germ comes back.
    That way you will not get the same illness twice.
    You can keep your body healthy by eating a nutritious（有营养的）diet to make your immune systerm
    strong. You can also help your immune system fight germs by getting vaccinated（接种）.Vaccines are
    medicines.They contain germs that have been killed or weakened.The dead germs can't make you sick.
    Instead,they cause your body to make antibodies.If the same germ ever shows up again,then your
    antibodies attack it.

    Washing your skin can prevent some illnesses.
    A:Right
    B:Wrong
    C:Not mentioned

    答案：A
    解析：
    由文章第二段的第七句“Viruses are germs that can only live inside animals or plants.”可知，病毒只能生存在动植物体内，故选B。
    由第二段内容可知，致病菌有两种：一种是细菌；一种是病毒。病毒会致病，但有一部分细菌是良性的，故选B。
    由文章第三段第三句“You can prevent some illnesses simply by washing, with soap andwater.”可知，通过用水打上肥皂清洗皮肤可以预防一些疾病，故选A。
    由文章第三段最后一句中“germs can still enter the body through...eyes and nose”可知，致病菌可以通过伤口、口、眼、鼻等进入人体，故选A。
    文章并未提及心脏含有人体最强健的肌肉，故选C。
    由文章第四段倒数第三句“After a germ is destroyed, the antibodies stay in your body.”可 知，在毁掉致病菌以后，抗体会留在人体中，故选A。
    由文章最后一段内容可知，疫苗是接种到人体中用以抵抗致病菌的；疫苗是一种药物， 故选B。第3部分：概括大意与完成句子

  • 第18题：

    根据下面资料，回答
    Germs are everywhere. You can′t see them, but they are on your desk, on your computer, and even in the air!
    Like people, germs move around the world. They fly with us on planes. When food, clothes, and other things travel around the world, germs travel, too. Some germs are safe, but some are dangerous. Germs cause illnesses like colds and the flu.
    Warmer Weather Brings Germs
    The world′s weather is changing. Cooler countries are getting warmer, so insects from hot countries can move there. Some of these insects, like mosquitoes, carry dangerous germs. These germs cause headaches, fever, and can even kill people.
    Under Your Skin
    Your skin protects you from germs. It stops some germs, but not all. They can enter your body when you eat, or when you have a cut. Germs are on your hands, too. They enter your body when you touch your eyes, nose, or mouth.
    Your immune system (免疫系统) protects you, too. When germs get inside your body, your immune system finds and kills them. Special cells (细胞) move around your body and fight germs. They help you stay healthy. Other cells make antibodies. Antibodies help your body find and stop germs.
    What can you do to fight germs? You should wash your hands with soap and water. Soap kills many germs, and water washes them away.
    What do antibodies do?
    _______________________________________________________________________


    答案：
    解析：
    They help protect us from germs．

  • 第19题：

    After a server has been installed into a rack, an administrator must ensure which of the following?（）

    • A、Warm air flow is permitted through the front bezel
    • B、The system is labeled so that it can be identified
    • C、Verify the change control process can be implemented
    • D、Determine the correct power requirements

    正确答案:B

  • 第20题：

    单选题
    After a server has been installed into a rack， an administrator must ensure which of the following？（）
    A

    Warm air flow is permitted through the front bezel

    B

    The system is labeled so that it can be identified

    C

    Verify the change control process can be implemented

    D

    Determine the correct power requirements


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    Wrought iron has an inherent resistance to corrosion but is not to be had freely , its place has been taken by the cuprous alloysAccording to the above sentence , which of the following statements is true?（）
    A

    Wrought iron can resist liquids flow

    B

    It is difficult to attain the wrought iron

    C

    Wrought iron should be combined with cuprous alloys

    D

    The cuprous alloys have mere disadvantages than wrought iron


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    The insects of this kind can ______ the color of their background so that enemies cannot see them.
    A

    turn on

    B

    put on

    C

    take on

    D

    hold on


    正确答案： A
    解析：
    句意：这种昆虫可以伪装出与背景一样的颜色，以便使得敌人发现不了它们。put on假装，上演，穿上。take on表现，采纳，承担。turn on打开（灯等）。hold on坚持住。

  • 第23题：

    单选题
    I can _____ you that the animals are well cared for in our zoo, so you needn’t worry about them.
    A

    suppose

    B

    assume

    C

    assure

    D

    grant


    正确答案： A
    解析：
    句意：我向你保证在我们动物园里动物可以得到很好的照料，因而你不必担心。assure保证；担保。suppose推想；假设。assume假定；设想。grant同意；批准。

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