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【单选题】
盖板梳棉机上,在相邻两针面隔距足够小的情况下,下列哪一组条件一定能产生分梳作用?()A.
两针面交叉配置，有同向相对运动
B.
两针面平行配置，有同向相对运动
C.
两针面交叉配置，有异向相对运动
D.
两针面平行配置，有异向相对运动
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】装有轮子的旱冰鞋
【单选题】The government has ( ) reasons to be cautious about any reform. concerning personal income tax.政府有合理的理由对个人所得税改革保持谨慎。
A.
legitimate
B.
illicit
C.
illegal
D.
irrational
【单选题】I was surprised by just how many personal lessons I_____.
A.
pick
B.
up
C.
picked up
D.
picking up
【单选题】I am a personal assistant and I am responsible ____ the office.
A.
with
B.
for
C.
in
D.
on
【单选题】The real reason for ChoicePoint's fast expansion is that
A.
it collects and sells personal information.
B.
it has acquired nearly 60 firms since 1997.
C.
the industry is largely unregulated by the government.
D.
the information it provides is useful to many.
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