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【简答题】
运输液体的机械称为泵,输送气体的机械根据其产生的压力高低分别称为通风机 、 _________、 压缩机与 _________ 。
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反馈参考答案：
举一反三
【单选题】Jiffy-Pol Consultants is paid $1,000,000 for each percent of the vote that Senator Sleaze receives in the upcoming election. Sleaze's share of the vote is determined by the number of slanderous campai...
A.
3329
B.
1666
C.
72
D.
1702
【单选题】According to the author, the World Bank's real problem is ______.
A.
its corruption
B.
its policy on lending
C.
its continued existence
D.
Wolfowitz's romantic relationship
【单选题】题目: 环境温度低时,代谢率增加的原因主要是 编号: CBAAQCJ
A.
体内化学反应加快
B.
寒战及肌肉紧张度增强
C.
肌肉松驰
D.
皮肤血管舒张
E.
内脏活动减弱
【单选题】Jiffy-pol Consultants is paid $1,000,000 for each percent of the vote that Senator Sleaze receives in the upcoming election. Sleaze's share of the vote is determined by the number of slanderous campai...
A.
3329
B.
1666
C.
72
D.
1702
【单选题】According to the passage, the people in 'Customer Service' are very ______.
A.
ignorant
B.
polite
C.
arbitrary
D.
foolish
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