非加重钻井液一般使用在（）井段。 A.上部 B.中部 C.下部 D.全部_爱下问搜题

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问题单项选择题

非加重钻井液一般使用在（）井段。

A.上部

B.中部

C.下部

D.全部

答案

参考答案：A

填空题

用方框内所给单词的适当形式填空。

photo, lie, wash, child, she, listen, have

1. She often __________ a good time on the school trip.
2. Look! The dog __________ on the ground.
3. She has no book. Please give it to __________.
4. June 1st is __________ Day.
5. The girls are __________ the clothes now.
6. They are __________ to the radio now.
7. Do you often take any __________?

判断题

广东省石牌产广藿香挥发油主要成分是广藿香酮。（）