拜尔法中加入氧化钙的作用?

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问题:

拜尔法中加入氧化钙的作用?

考点:有色金属冶金有色金属冶金题库
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Once, a king showed two men a large basket in the garden. He told them to fill it with water from a well. After they ____ their work, he left them, saying, “When the sun is down, I will come and see your work.”

At last one of them said, “What’s the use of doing this foolish work? We can ___ fill the basket.” ____ man answered, “That is none of your business.” The first man said. “You may do as you like, but I am not going to work at ____ so foolishly.” He ____ his bucket(圆桶) and went away. The other man said no word, and kept on carrying ____. At last the well was almost ____.

As he poured the last bucket of water into the basket, he saw a bright thing in it. He ______. It was a beautiful gold ring. Just then the king came. ____ he saw the ring, he knew that he had found the kind of man he wanted. He told him to keep the ring for himself. “You ___ so well in this little thing,” he said, “ What now I know I can believe you with many things.”

小题1:

A.finished

B.did

C.began

D.had小题2:

A.never

B.also

C.hard

D.always小题3:

A.The other

B.Another

C.One

D.A second小题4:

A.anything

B.something

C.nothing

D.everything小题5:

A.picked up

B.put away

C.took away

D.threw away小题6:

A.water

B.basket

C.well

D.work小题7:

A.full

B.empty

C.filled

D.clean小题8:

A.put it up

B.looked it up

C.picked it up

D.gave it up小题9:

A.While

B.As soon as

C.Before

D.Since小题10:

A.have done

B.will do

C.do

D.are doing

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对于开放性骨折,一般认为在伤后几小时内清创创口,绝大多数能一期愈合()

A.3~4小时

B.6~8小时

C.8~10小时

D.10~12小时

E.24小时

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330kV及以上油浸式电力变压器电抗器的油中溶解气体分析中乙炔的注意值是()。

A.1uL/L

B.2uL/L

C.3uL/L

D.4uL/L

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绳网分为上封式和()两种。

A.上捆式

B.下捆式

C.下封式

D.上包式

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