Nowadays, a large number of women, especially those from the countryside,in the clothingindustry.
A. is working
B. works
C. work
D. are working
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--Why didn't you turn up at the meeting?--Ifor a long-distance call from my cousin in England.
A. waited
B. am waiting
C. was waiting
D. have been waiting
The naughty boy! Hewhere he leaves his things.
A. always forget
B. will always forget
C. is always forgetting
D. has always forgotten
点的正面投影到ox轴的距离，等于空间点到面的距离
A. H
B. V
C. W
点的水平投影到OX轴的距离，等于空间点到面的距离
A. H
B. V
C. W
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