成捆堆放的棉、麻、纸张及大量堆放的煤、杂草、湿木材等,受热后易发生()。(A)燃烧

题型:单项选择题

问题:

成捆堆放的棉、麻、纸张及大量堆放的煤、杂草、湿木材等,受热后易发生()。

(A)燃烧 

(B)自燃 

(C)阴燃 

(D)闪燃

考点:消防员考试第二章燃烧基础知识第二章燃烧基础知识题库
题型:单项选择题

单个细菌在固体培基上的生长现象是()

A.菌落

B.菌膜

C.菌丝

D.菌团

E.菌苔

题型:单项选择题

阅读理解

     Have you ever thought about what determines the way we are when we grow up?Remember the

TV program Seven Up?It started following the lives of a group of children in 1973.We first meet them

as wideeyed sevenyearolds and catch up with them at sevenyear intervals: nervous 14yearolds, serious

21yearolds and then grownups.

     Some of the stories are inspiring, others sad, but what is interesting in almost all the cases is the way

in which the children's early hopes and dreams are shown in their future lives.For example, at seven,

Tony is a lively child who says he wants to become a sportsman or a taxi driver.When he grows up, he

goes on to do both.How about Niki?She says, "I would like to find out about the moon." And she goes

on to become a space scientist.As a child, softspoken Bruce says he wants to help "poor children" and

ends up teaching in India.

     But if the lives of all the children had followed this pattern, the program would be far less interesting

than it actually was.It was the children whose childhood did not prepare them for what was to come that

made the program so interesting.Where did their ideas come from about what they wanted to do when

they grew up?Are children influenced by what their parents do, by what they see on television or by

what their teachers say?How great is the effect of a single important event?Many film directors, including

Steven Spielberg, say that an early visit to the cinema was the turning point in their lives.Dr Margaret

McAllister, who has done a lot of research in this area, thinks that the major factors are parents, friends

and their wider society.

1. What does the text mainly discuss?

A. New ways to make a TV program interesting.

B. The importance of TV programs to children.

C. Different ways to make childhood dreams come true.

D. The influence of childhood experience on future lives.

2. What does the underlined word "influenced" mean in the last paragraph?

A. Impressed.  

B. Improved.

C. Affected.  

D. Attracted.

3. What are the examples in Paragraph 2 meant to show?

A. Many people's childhood hopes are related to their future jobs.

B. There are many poor children in India who need help.

C. Children have different dreams about their future.

D. A lot of people are very sad in their childhood.

4. Spielberg's story is meant to show that________.

A. going to a movie at an early age helps a child learn about society

B. a single childhood event may decide what one does as a grownup

C. parents and friends can help a child grow up properly

D. films have more influence on a child than teachers do

题型:单项选择题

下列字符中,其ASCII码值最大的是

A.STX

B.8

C.E

D.a

题型:单项选择题

毒素

题型:单项选择题

计算设备经济寿命的常用方法有______。

A.总费用现值法

B.最 * * 均费用法

C.低劣化数值法

D.寿命周期费用法

E.最大收益法

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