单项选择题

The engine is ______ at 6,000 revolutions per minute.

A. turning in
B. turning off
C. turning over
D. turning to
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单项选择题
Have you got some red eggs No, but I've got ______ .
A. any white ones
B. some white ones
C. some white one
D. any white one
单项选择题
We are interested in the weather because it. ______ us so directly what we wear, what we do, and even how we feel.
A. affects
B. effects
C. guides
D. directs
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