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问题 问答题 简答题

原料性质变轻后，操作上应做哪些调整？

答案

参考答案：

A.注意塔顶压力的变化，及时启动风机.

B.各侧线流量及中段回流流量，塔底吹汽量要相应调整.

C.减压炉进料量低时要机时注汽.

选择题

The weather turned out to be very good, ____ was more than we could expect.

A．what

B．which

C．that

D．if
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完形填空

Mrs. White: Mrs. Green, could you do something for mc. please?

Mrs. Green: Yes, of course, Mrs. White!______小题1:

Mrs. White: Well, my husband and I are leaving for London for a holiday.________小题2:

Could yon look after him while we’re away?

Mrs. Green:________小题3: Tom is a smart boy. I’d love to look after him. What do I have to do?

Mrs. While: Nothing ________小题4:Cook dinner for him and put him to bed at ten.

Mr. Green: Don’t worry.

’Mrs. White: Thank you so much. Mrs. Green.

Mrs. Green:_小题5:
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