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【判断题】
转动小滑板车外圆锥若成批生产,劳动强度大,工件表面粗糙度难控制。( )A.
正确
B.
错误
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皮皮学刷刷变学霸
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【简答题】治疗手术后腹气胀和尿潴留最好选用 。
【单选题】It was not until she got home _______ Jenniferr
A.
9. It was not until she got home _______ Jenniferrealized she had lost her keys. ( 全国 3) A. when
B.
that
C.
where
D.
before
【单选题】It was reported another person was infected with bird flu.
A.
what
B.
which
C.
when
D.
that
【简答题】听对话，完成第l-3小题。 1. How was the girl's school trip? A. It was borin9. B. It was great. C. It was terrible .2. Were there any lions in the zoo? A. N0,there weren't. B. Yes,there were. C. We don't know. 3....
【简答题】简述钻井液的主要作用？
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