高炉烘炉的目的主要是（）。A、保护炉衬和炉体设备B、开炉后早日达产C、保证开炉安全

发布时间：2017-08-11 08:20 │ 来源：www.tikuol.com

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问题：

高炉烘炉的目的主要是（）。

A、保护炉衬和炉体设备

B、开炉后早日达产

C、保证开炉安全

考点：冶金工业技能鉴定考试冶炼检验工（中级）冶炼检验工（中级）题库

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阅读理解。

       A few days ago, few people knew his name or his face. But last Thursday, when he came back to the
earth after a 21-hour trip to space, Yang Liwei's smile was seen across the world.
       The 38-year-old astronaut was sent into space at 9:00 a.m. October 15, 2003 by China's Shenzhou V
spaceship, and it travelled around the earth 14 times. He landed safely at 6:23 a.m. the next day. So China
became the third country to successfully send a person into space, after the former Soviet Union (前苏联)
and the U.S.A.
       Yang was pleased with his job. "I think ours was one of the most successful," he said.
       If you saw the breaking-up of the space plane named Columbia (哥伦比亚号) in February of 2003, you
would know that Yang Liwei would be in great danger.
       Yang experienced very high temperature, while the gravitational forces (地心引力) on taking off (起飞)
and landing was strong enough to make tears from his eyes.
        He has spent five years training to become a spaceman after 1350 hours' flying in the air. Although it was
hard work, Yang loved it. Yang's success was well worth all the hard work. Yang has become China's first
spaceman.

1. What time was Yang Liwei sent into space?

[ ]

A. At 9:00 a.m.
B. At 21 o'clock.
C. At 6:23 a.m.
D. At 14 o'clock.

2. From the passage, we know China has become to send a man into space.

[ ]

A. the first one
B. the second one
C. the third one
D. the last one

3. Which sentence is right?

[ ]

A. Yang Liwei was pleased with his job.
B. Yang Liwei works hard on his work.
C. The space plane named Columbia was landed successfully.
D. A and B

4. Shenzhou V spaceship spent travelling around the earth at a time.

[ ]

A. one hour
B. two hours
C. one hour and a half
D. three hours

5. How many times did Yang Liwei go around the earth?

[ ]

A. 21 times.
B. 14 times.
C. Only one time.
D. 9 times.

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