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【简答题】
试述离心泵工作原理？
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皮皮学刷刷变学霸
举一反三
【简答题】Thank you for sending us your references so promptly.
【单选题】— ___________________ — That's all right. [ ]
A.
How are you?
B.
What do you like?
C.
Thank you very much.
D.
I'm sorry. I'm late.
【单选题】( )，日本帝国主义发动震惊中外的“九一八事变”。在民族危亡关头，国民党政府奉行不抵抗政策，几个月之内就使东北全境沦陷。
A.
l931年
B.
l932年
C.
l937年
【单选题】Thank you so much for the book you sent me. _________
A.
No, thank you.
B.
I'm glad you like it.
C.
Please, don't say so.
D.
No, it's not so good.
【单选题】--Wish you a happy holiday. --___________
A.
I hope so.
B.
You are so kind.
C.
Thank you, do you?
D.
Thank you, the same to you.
【简答题】小数点的后面填上0或去掉0,小数的大小不变. ( )
【单选题】---Thank you for helping me so much. ---______________.
A.
You are welcome
B.
All right
C.
Don't say so
D.
Don't thank me
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