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泵的额定转速和额定压力下的流量称为 。
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【单选题】The girl doesn't run ____ the boy
A.
much faster as
B.
so fast as
C.
as faster as
D.
fast than
【简答题】句型转换，不改变原意。 1. This hotel is the best of all in the city. (不改变原意) This hotel is better __ hotel in the city. 2. Playing the piano is not easy to learn. (不改变原意) __ is not easy _ playing the piano. 3. Z...
【简答题】语法填空 My friends Sandra Clark is an English girl. She ge ts up at 6:00 in the morning. She eats some eggs and some fruit 1 breakfast at 7:00, but she 2 eat hamburgers. Because she doesn't think hamburg...
【简答题】轴系轴承的最小负荷应不小于( )的20%。
【简答题】句型转换。 1. Jim studies English,Maths, Scienc e and Art .（对画线部分提问） What _____ _____ Jim _____? 2. He usually plays football on Sundays.（改为否定句） He _____ usually _____ football on Sundays. 3. He is sitting...
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