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【单选题】
精馏塔内上升蒸汽不足发生的不正常现象是( )。A.
雾沫挟带
B.
干板
C.
液泛
D.
漏液
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反馈参考答案：
举一反三
【单选题】What does the man think of the teacher?
A.
She's from Asia.
B.
She's from Africa.
C.
She's from Europe.
【简答题】A. She envies the man. B. She congratulates the man. C. She thinks money causes trouble. D. She wants to borrow money from the man.
【单选题】IV . 词汇与语法: 26. Last week they paid a visit __________ the Great Wall.
A.
of
B.
at
C.
to
D.
on
【单选题】What was the police officer's attitude to the letter from the man?
A.
She believed the man came across many misfortunes.
B.
She took pity on the unlucky man who had a bad day.
C.
She felt it funny that the man made up such a story.
【单选题】某企业2018年3月发生了如下经济业务:(1)预付下季度房租20 000元;(2)3月份销售商品货款25 000元,款项未收;(3)购买1000元的办公用品;(4)预收购货方定金52 000元,货物尚未发送。若以收付实现制为计算基础时,3月份的收支净额为( )元。
A.
24 000
B.
5 000
C.
76 000
D.
31 000
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