单选题Why the explosion occurred was _____ the laboratory attendant had been careless.A forB becauseC sinceD that

题目
单选题
Why the explosion occurred was _____ the laboratory attendant had been careless.
A

for

B

because

C

since

D

that

相似考题

1.He doesn’t understand __________ so early in the morning.(A) why to start(B) why start(C) why to starting(D) why they should be start

2.He () in the laboratory the whole morning.A、has been workingB、is workingC、has worked

3.The traffic accident _________ three days ago.A、was happenedB、took placeC、was occurred

4.You have overworked yourself.() a holiday to relax?A、Why not to go onB、Why don't go onC、Why don't haveD、Why not go on

更多“Why the explosion occurred was _____ the laboratory attendan”相关问题

  • 第1题：

    I just wonder if ( )ever( )that you could have your own enterprise and run it yourself when you were still a student.

    A、it.occurred

    B、you.occurred to it

    C、it.occurred to you

    D、you.occurred


    参考答案：C

  • 第2题：

    The teacher showed the students () the laboratory.

    A.on

    B.at

    C.around


    正确答案：C

  • 第3题：

    At the first explosion,the crowd scattered．

    A:separated
    B:fled
    C:departed
    D:spread

    答案：A
    解析：
    本句意思：爆炸声一响，人群便散开了。Scatter意思是“（使）散开，（使）分散”，与sepa-rate（分开，使分离）意思相近。flee逃走，逃跑；depart离开，出发；spread伸开，展开。

  • 第4题：

    The explosion scattered a flock of birds roosting in the trees.

    A:departed
    B:separated
    C:fled
    D:spread

    答案：B
    解析：
    本句意思：爆炸声把栖息在树丛中的鸟群惊散了。scatter意为“散开，驱散，使分散”，与 separate（使分离，分散）意思相近。depart离开，出发；flee逃走，消失；spread展开，散布。

  • 第5题：

    The gigantic explosion that occurred a hundred years ago

    A. has remained a puzzle
    B. lacks sufficient evidence
    C. is a university professor
    D. was generated by the explosion
    E. will kill many animals
    F. are attacked by aliens

    答案：A
    解析：

  • 第6题：

    Certkiller.com has hired you as a system administrator for their network. The previousadministrator created a Microsoft ASP.NET Web application. Microsoft .NET Framework v3.5 wasused to create this application. You detect an unexpected increase in the value of the Application Restarts counter whilstmonitoring the application performance counters. You receive an instruction from management toidentify the reasons for the increase. What should you identify？（）

    • A、The increase occurred due to changes made to the Web.config file in the system.web sectionfor debugging the application.
    • B、The increase occurred due to the Microsoft IIS 6.0 host being restarted.
    • C、The increase occurred due to an additional code fragment that needs recompilation to theASP.NET Web application.
    • D、The increase occurred due to the Microsoft Windows Server 2003 that hosts the Webapplication being restarted.
    • E、The increase occurred due to an additional new assembly in the Bin directory of the application.
    • F、The increase occurred due to HTTP compression being enabled in the Microsoft IIS 6.0manager for the application

    正确答案:A,C,E

  • 第7题：

    实验室检测（Laboratory Testing）


    正确答案:是借助实验室仪器设备对样品中的有害生物检查、鉴定的法定程序。

  • 第8题：

    单选题
    The explosion occurred on the tanker when ______.
    A

    she was struck by lightning

    B

    two seamen were working

    C

    she was unloading her oil

    D

    the fog began to clear up


    正确答案： A
    解析：
    文中第三段第五句往后的意思是“一会儿，两个身影出现在甲板上，他们在工作。能听到锤子敲击的声音还有金属相撞的声音，接着听到什么东西重重地落在甲板上。一瞬间，岸上看着这边的人们被黄色的火焰照的睁不开眼，油轮已经被火海包围。”可以看出当油轮着火时工人正在工作。故B对。

  • 第9题：

    单选题
    The people who had been injured in the explosion lay ______ in agony.
    A

    screeched

    B

    groaned

    C

    screaming

    D

    to shriek


    正确答案： C
    解析：
    在大爆炸中受伤的人躺着，痛苦的尖叫着。Screech尖叫。Groan呻吟，叹息。 Scream尖声叫。Shriek尖叫。Lay doing something表示“躺着在做什么”。

  • 第10题：

    单选题
    Why the explosion occurred was _____ the laboratory attendant had been careless.
    A

    for

    B

    because

    C

    since

    D

    that


    正确答案： A
    解析：
    句意：发生爆炸的原因是做实验的人太粗心。that引导的是表语从句，解释说明主语的内容，前面则是由why引导的主语从句。

  • 第11题：

    单选题
    （）there danger of explosion?
    A

    Is

    B

    Has

    C

    If

    D

    Do


    正确答案： D
    解析： 暂无解析

  • 第12题：

    名词解释题
    实验动物（Laboratory Animals）

    正确答案： 是指经人工饲养，对其携带微生物和寄生虫实行控制，遗传背景明确或者来源清楚，用于科学研究、教学、生产、检定以及其它科学实验的动物。
    解析： 暂无解析

  • 第13题：

    We found him()in the laboratory.

    A. work

    B. working

    C. to work


    参考答案：B

  • 第14题：

    The bridge had been wrecked by the explosion.

    A:shaken
    B:fallen
    C:damaged
    D:trembled

    答案：C
    解析：
    本句意思：那座桥被炸毁了。wreck意思是“破坏，毁坏”，与damage（损坏，毁坏）意思相近。shake动摇，颤抖；fall来临，成为，落下；tremble颤抖，哆嗦。

  • 第15题：

    According to the fourth paragraph, which of the following is NOT true?

    A. No nuclear explosion would be triggered inside the star.
    B. The star would be destroyed completely.
    C. Much of the star's matter thrown by the explosion would be beyond the black hole's reach.
    D. The black hole would completely devour the star.

    答案：D
    解析：

  • 第16题：

    We arose early on Christmas morning.

    A:raised
    B:brought up
    C:gotup
    D:occurred

    答案：C
    解析：
    圣诞节早晨我们早早起床。get up“起床”，例如：I got up at five o'clock this morning！我今早5点钟就起床了。raise“举起，抚养”，例如：raise one's hand举手。bring up“提起，养育”，例如：Her parents died when she was a baby and she was brought up by her aunt.她出生后不久父母双亡，是由姑母抚养大的。occur“发生”，例如：When did the accident occur?事故是什么时候发生的？只有get up意思上和arise最接近。

  • 第17题：

    Miss Wang wanted to know（）for the film.

    • A、why was he late
    • B、why is he late
    • C、why he is late
    • D、why he was late

    正确答案:D

  • 第18题：

    Laboratory animal microbiology and parasitology：实验动物微生物与寄生虫学


    正确答案:研究实验动物的微生物、寄生虫分类以及实验动物与人类的相互关系，对实验动物的微生物与寄生虫的质量控制，以达到控制和消灭实验动物疾病的目的.

  • 第19题：

    实验动物（Laboratory Animals）


    正确答案: 是指经人工饲养，对其携带微生物和寄生虫实行控制，遗传背景明确或者来源清楚，用于科学研究、教学、生产、检定以及其它科学实验的动物。

  • 第20题：

    单选题
    With regards to a diesel engine crankcase explosion, the most violent is the（） (1) primary explosion (2) secondary explosion
    A

    (1) only

    B

    (2) only

    C

    both (1) and (2)

    D

    neither (1) or (2)


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    If a crankcase explosion has occurred in a diesel engine, and the crankcase remains intact, which of following precautions should be observed?（）
    A

    The cylinder indicator cocks should be opened

    B

    The sump lube oil scavenge pump should be secured immediately

    C

    The explosion relief valves should be manually opened

    D

    The crankcase should remain unopened until the engine has cooled


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    This is the biggest laboratory _____ we have ever built in our school.
    A

    which

    B

    what

    C

    where

    D

    \


    正确答案： C
    解析：
    当先行词前有最高级修饰时，用关系代词that，不能用which。而且如果这个关系代词在定语从句中作宾语，可以省略，所以选D。

  • 第23题：

    单选题
    A Cisco router has been configured, and the copy running-config startup-config command has been issued. When the router is power cycled, the router prompts with: "Would you like to enter the initial configuration dialog? [yes/no]" Why has this occurred?（）
    A

    There is an error in the router DRAM.

    B

    Te IOS image is corrupt.

    C

    The configuration register is set to 0x2142.

    D

    The TFTP server that contains the router configuration file is unreachable.

    E

    A boot system configuration command has placed the router into setup mode.


    正确答案： E
    解析： 暂无解析

  • 第24题：

    多选题
    Certkiller.com has hired you as a system administrator for their network. The previousadministrator created a Microsoft ASP.NET Web application. Microsoft .NET Framework v3.5 wasused to create this application. You detect an unexpected increase in the value of the Application Restarts counter whilstmonitoring the application performance counters. You receive an instruction from management toidentify the reasons for the increase. What should you identify？（）
    A

    The increase occurred due to changes made to the Web.config file in the system.web sectionfor debugging the application.

    B

    The increase occurred due to the Microsoft IIS 6.0 host being restarted.

    C

    The increase occurred due to an additional code fragment that needs recompilation to theASP.NET Web application.

    D

    The increase occurred due to the Microsoft Windows Server 2003 that hosts the Webapplication being restarted.

    E

    The increase occurred due to an additional new assembly in the Bin directory of the application.

    F

    The increase occurred due to HTTP compression being enabled in the Microsoft IIS 6.0manager for the application


    正确答案： E,F
    解析： 暂无解析

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