手提式灭火器宜设置在挂钩、托架上或灭火器箱内,其顶部离地面高度应小于( )。A.0

题型:单项选择题

问题:

手提式灭火器宜设置在挂钩、托架上或灭火器箱内,其顶部离地面高度应小于( )。

A.0.15m

B.0.5m

C.1m

D.1.5m

考点:安全工程师安全生产技术安全生产技术
题型:单项选择题

阅读理解。

     All students need to have good study habits. When you have good study habits, you can learn things

quickly. You also remember them easily. Do you like to study in the living-room? This is not a good place

because it is usually too noisy. You need to study in a quiet place, like your bedroom. A quiet place will help

you only think about one thing, and you will learn better. Before you begin to study, do not forget to clean

your desk. A good desk light is important, too. You are feeling tired easily if there is not enough (足够的) light.

1. When you have good study habits, you will _______.

A. learn things quickly

B. remember things easily

C. both A and B

2. The living-room is not a good place for study because it is too _______.

A. quiet

B. noisy

C. clean

3. You are feeling tired easily if the light is ________.

A. good

B. enough

C. bad

4. You should remember to ________ before you study.

A. tidy the room

B. clean the desk

C. turn on the light

5. The best title(标题) for this passage is ________.

A. Good Study Habits

B. How to Study

C. Desk Light is important

题型:单项选择题

Praise is like sunlight to the human spirit; without _____we cannot flower and grow.

A. it

B.them

C.that

D.which

题型:单项选择题

中国近代洋务派兴办军事工业和民用工业的根本目的是:

A.发展军事工业,维护“闭关自守”

B.利用西方先进技术,抵制外国侵略

C.利用西方先进技术,维护清朝统治

D.利用西方先进技术,发展资本主义

题型:单项选择题

一气球正在升空.气球里填充的气体密度要______(填“大于”、“小于”或“等于”)空气的密度,气球升到高空时会破裂,其主要原因是高空的大气压相对较______(填“高”或“低”),球内气压______(填“大于”、“小于”或“等于”)外界大气压,将球胀破.

题型:单项选择题

利用气态化合物(或化合物的混合物)在基体受热表面发生化学反应,并在该基体表面生成固态沉积物的技术称()。

A、物理气相沉积(PVD)

B、物理气相沉积(CVD)

C、化学气相沉积(VCD)

D、化学气相沉积(CVD)

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