Before attempting to put out a class “C” fire involving an e

题目
单选题
Before attempting to put out a class “C” fire involving an electric-driven centrifugal pump, you should FIRST ().
A

insulate your shoes

B

ground the fire hose

C

secure its power supply

D

start the fire pump

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相似问题和答案

第1题:

The forest fire caused by the volcano is difficult to be______.

A. put off

B. put on

C. put out

D. put up


正确答案:C

14.答案为C  由火山引起的森林大火很难扑灭。词组辨析:put off“推迟”;put on“穿上”; put out“熄”灭;put up“举起,搭起”。

第2题:

Part IV Cloze (20 points) Directions: There are ten blanks in the following passages. And there are five choices marked A), B), C), D) and E). Match each blank with the right choice. Passage One Fire can help people in many ways. Fire can heat water, (41) () your house, give light and cook food. But fire can burn things too. Nobody knows (42) () people began to use fire. One story from Australia tells about a man a very long time ago. He went up to the sun by a rope and brought fire down. Today people know how to (43) () a fire with matches. Children sometimes like to play with them. But matches can be very dangerous. Fire kills people every year. So you must be careful about matches. You should also learn to (44) () fires. Fires need oxygen. Without oxygen they die. There is oxygen in the air. Cover a fire with water, sand, or in an emergency, with your coat or a blanket. This keeps the air (45) () a fire and kills it. Be careful with fire, and it will help you. Be careless with fire, and it might hurt you.

(1). A.make B.warm C.how D.put out E.from

(2). A.make B.warm C.how D.put out E.from

(3). A.make B.warm C.how D.put out E.from

(4). A.make B.warm C.how D.put out E.from

(5). A.make B.warm C.how D.put out E.from


正确答案: (1).B (2).C (3).A (4).D (5).E

第3题:

What were you doing when the fire______last night?

A.broke out

B.put out

C.set out

D.found out


参考答案:A

第4题:

Would you like to join me for a quick lunch before class? () but I promised Tom to go out with him.

AI'd love to

BI like it

CI don't

DI will


A

第5题:

A fire involving trash and paper waste would be classified as a ______.

A.class A

B.class B

C.class C

D.class D


正确答案:A

第6题:

The firemen managed to _______ the fire in time.

A.prevent

B.put off

C.put out

D.light


正确答案:C

第7题:

The class of fire on which a blanketing effect is essential to extinguish the fire is

A.Class 'A'

B.Class 'B'

C.Class 'C'

D.Class 'D'


正确答案:B

第8题:

At last firemen have( )a big forest fire in California.

A. put off

B. put on

C. put out

D. put with


参考答案:C

第9题:

IBM now has incentive to______or fire employees before that Dec.15 date.

A.lay down
B.lay off
C.lay aside
D.lay out

答案:B
解析:
题目意为“现在,IBM在12月15日之前有动机去____或解雇员工。”选项A意为“放下,放弃”;选项B意为“暂时解雇,裁员,停止工作”;选项C意为“把……放在一边”;选项D意为“展示,设计,安排”。结合题干,IBM想要有临时解雇或裁员的打算,故答案B更符合题意。
  

第10题:

public class X {  public static void main(String [] args) {  try {  badMethod();  System.out.print(“A”);  }  catch (Exception ex) {  System.out.print(“C”);  }  finally {  System.out.print(“B”);  }  System.out.print(“D”);  }  public static void badMethod() {  throw new Error();  }  }  What is the result?()  

  • A、 ABCD
  • B、 Compilation fails.
  • C、 C is printed before exiting with an error message.
  • D、 BC is printed before exiting with an error message.
  • E、 BCD is printed before exiting with an error message.

正确答案:B

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