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问题 单项选择题

钻井液液气分离器排气管线走向应沿当地季节风的（）方向，按设计通径接出井场50m以远，并应配备性能可靠的点火装置。

A、上风

B、任意

C、下风

答案

参考答案：C

填空题
用方框中适当短语完成句子。
at the moment, for a moment, in time, on time, hurry up, hurry over,
make mistakes, make problems, hear from, hear of
1. One of my classmates was very glad to ______ Bill Clinton.
2. The policeman arrived just ______ to save the boy.
3. This book is very popular with the students ______.
4. When the doctors learned about the accident, they ______ to the spot.
5. People who are watching football games sometimes ______. They might fight
    with each other.
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单项选择题

在唐代，国家开科考试共设立了几科（）

A、三

B、九

C、六

D、八
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