Which of the following conditions is true concerning a flammable liquid with a concentration above the upper explosive limit?A.The mixture is too lean to burnB.The mixture is too rich to burnC.The vapor is about to explodeD.Conditions are perfect for comb

题目

Which of the following conditions is true concerning a flammable liquid with a concentration above the upper explosive limit?

A.The mixture is too lean to burn

B.The mixture is too rich to burn

C.The vapor is about to explode

D.Conditions are perfect for combustion


相似考题

3.You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident. However, special care must be taken in selecting new blood for you. If the blood is too different from your own, the transfusion could kill you. There are four basic types of blood: A, B, AB, and O. A simple test can indicate a person's blood type, which, like hair color and height, is inherited from parents. Because of substances contained in each type, the four groups must be transfused carefully. Basically, A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. O can give to any other group; hence, it is often called the universal donor. For the opposite reason, AB is sometimes called the universal recipient. However, because so many reactions can occur in transfusions, patients usually receive only salt or plasma (liquid) until their1、A good title for this passage is ________.A、Getting Blood and PlasmaB、Special Blood TypesC、Human Blood TypesD、The Blood Bank of a Hospital2、The word "hence" in line 10 means _________A、alwaysB、 oftenC、 thereforeD、 seldom3、In a blood transfusion, it is easiest to find the acceptable type of blood for a person with the blood type of ________A、AB、 BC、 ABD、 O4、The purpose of using salt and plasma before a blood transfusion is to allow time ______.A、to test the reactions to the transfusionB、for matching the blood to be transfused with the patient's bloodC、 for the blood to be delivered from the blood bankD、 to select a new type of blood for the patient5、Most Europeans have blood type _________A、AB、BC、OD、A or O

参考答案和解析
正确答案:B
更多“Which of the following conditions is true concerning a flammable liquid with a concentrati ”相关问题
  • 第1题:

    You’re going to have a quiz ( )by another two in the ( )month.

    A. followed,followed

    B. followed,following

    C. following,followed

    D. following,following


    参考答案:B

  • 第2题:

    A query is used to search through the database to locate a particular record or records, which conform. to specified (75) .

    A.criteria

    B.standards

    C.methods

    D.conditions


    正确答案:A

  • 第3题:

    The speech which he made __________ the project has bothered me greatly.

    A) being concerned        B) concerned      C) be concerned        D) concerning

     


    D



    The speech concerning ……有关……的讲座

  • 第4题:

    We will hold a meeting ____ your complaint.

    A: to concern

    B: concern

    C: concerned

    D: concerning


    参考答案:D

  • 第5题:

    下面含有“易燃性”意思的单词有( ):

    A.explosive

    B.radioactive

    C.poisonous

    D.flammable


    正确答案:D

  • 第6题:

    The word "conditions" in paragraph 2, line 9 is closet in meaning to__________.

    A.statuses
    B.appearances
    C.demands
    D.qualities

    答案:C
    解析:
    本题为选择和相应词汇意思最相近的单词的问题。