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【简答题】
离心泵的定速特性曲线如何测定?测定哪些内容?
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【单选题】.----Is she older than you? -----Yes, she is older than I ___ three years.
A.
for
B.
by
C.
in
D.
on
【简答题】--“Is she older than you?” --“Yes she is older than ________ two years” [A] me [B] I for [C] I am by [D] me by
【简答题】Read the following text and answer the questions by finding information from the right column that corresponds to each of the marked details given in the left column. There are two extra choices in th...
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