伴热蒸汽应从供汽主线上方引下，蒸汽压力保持稳定，一般不小于（

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问题单项选择题

伴热蒸汽应从供汽主线上方引下，蒸汽压力保持稳定，一般不小于（）

A.0.2～1.0MPa

B.0.3～1.0MPa

C.0.4～1.0MPa

D.0.5～1.0MPa

答案

参考答案：D

句型转换

按要求写句子。

1. I'm planning to visit my teacher this Sunday. (对画线部分提问)

_____ are you planning _____ this Sunday?

2. They got to school at eight in the morning. (改为同义句)

They _____ _____ the school at eight in the morning.

3. There's a man in the pictures. (改为复数句子)

There _____ some _____ in the pictures.

4. She often studies for her test at home. (用now改写)

She _____ _____ for her test at home now.

5. The students did well in English last week. (改为一般疑问句)

_____ the students _____ well in English last week?

问答题

试论述小学生参加劳动的教育意义。