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【单选题】
往复泵的额定排出压力主要取决于________。1轴承的承载能力;2密封性能;3泵的强度;4原动机功率A.
①②③④
B.
①②③
C.
①②④
D.
②③④
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【单选题】Congratulations ____your excellent performance in the talent show!
A.
on
B.
by
C.
for
D.
to
【单选题】正态分布曲线下,横轴上,从均数μ到μ+1.96倍标准差 所对应的面积占整个正态分布曲线下面积的________。
A.
0.475
B.
0.45
C.
0.95
D.
0.495
【简答题】星爵和大表姐.mp4 How to respond to people’s compliment Chris: Isn’t that ____1_____? I love that. Jennifer: I am _____2___. How to compliment. Ellen: You are so 3 Jennifer: He is a 4 . Jennifer: He has goo...
【单选题】In the talent show, I performed well and Ann did even________.
A.
well
B.
better
C.
more
D.
worse
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