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问题
单项选择题
开关接线室接线,线芯不准出现接线()
A、毛刺
B、其它
C、绑扎
答案
参考答案:
A
单项选择题
正常人精子低渗肿胀试验中,g型精子应大于()。
A.20%
B.30%
C.40%
D.50%
E.60%
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选择题
As a teacher, I seldom give my students so difficult a problem ____ they can not work out.
A. that
B. if
C. in order that
D. as
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