高炉煤气无色,无味,有毒,毒性气体主要是()。 A.CO2 B.CO C.H2 D.

题型:单项选择题

问题:

高炉煤气无色,无味,有毒,毒性气体主要是()。

A.CO2

B.CO

C.H2

D.N2

考点:煤焦车司机考试初级煤焦车司机考试初级煤焦车司机考试题库
题型:单项选择题

Reading Comprehension

  One day a teacher and his student lay down under a big tree near the big grass area. Then the student

suddenly asked the teacher, "Teacher, I wonder how I find my good friend. Can you please help me?"

  Saying nothing for a few seconds, the teacher then answered, "Well, it's a pretty hard and an easy

question."

  "Look that way. There is a lot of grass. Why don't you walk there? Please don't walk backwards,

just walk straight ahead. On your way, try to find a blade (叶片) of beautiful grass and pick it up and then

give it to me, but just one."

  The student said, "Well, OK then…Wait for me…" and walked straight ahead to the grassy field.

  A few minutes later the student came back.

  The teacher asked, "Well, I don't see a beautiful blade of grass in your hand."

  "On my way, I found quite a few beautiful blade of grass, but I thought that I would find a better one,

so I didn't pick it. But I didn't know that I was at the end of the field, and I hadn't picked any because you

told me not to go back, so I didn't go back."

  The teacher said, "That's what will happen in real life. Grass is the people around you, the beautiful

blade of grass is the people that attract you and the grassy field is time. In looking for your soul mate,

please don't always compare and hope that there will be a better one. By doing that, you'll waste your life

time. Please remember 'Time Never Goes Back'."

1. What did the student want to find?

A. A good friend.  

B. Confidence.

C. Skill.

D. Energy.

2. What did the teacher ask him to do?

A. To walk straight ahead.

B. To find more blades of beautiful grass.

C. To find a blade of beautiful grass.

D. To find a beautiful flower.

3. What does the beautiful blade of grass stand for?

A. People.

B. Friendship

C. Time.  

D. Life.

4. What can we learn from the story?

A. We should save our time.

B. We should protect our environment.

C. We can always find many blades of beautiful grass.

D. We shouldn't waste lifetime only in hoping a better thing.

题型:单项选择题

东欧剧变前,导致其严重政治危机的根本原因是  [ ]

A.党内出现了反对派

B.执政党放弃了社会主义原则

C.自身严重的经济困难

D.西方国家的和平演变

题型:单项选择题

一般情况下,变电所操作的直流经常负荷电源由()提供。

A.交流电源

B.充电器

C.不间断电源

D.蓄电池

题型:单项选择题

下列对妨害民事诉讼的强制措施,说法错误的是()

A.必须到庭的被告,无正当理由拒不到庭,法院可以拘传

B.人民法院对哄闹冲击法庭,严重扰乱法庭秩序的人,可以不经院长批准而直接将其拘留

C.人民法院对个人作出的罚款金额,为人民币三千元以下

D.拘留的期限,为十五日以下

题型:单项选择题

背景吸收可使吸光度增加,产生正干扰。( )

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