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【判断题】
扬程为20m的离心泵，不能把水输送到20m的高度。( )A.
正确
B.
错误
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举一反三
【简答题】Section B – TWO questions ONLY to be attempted (a) Coate, a public limited company, is a producer of ecologically friendly electrical power (green electricity). Coate’s revenue comprises mainly the sa...
【简答题】In English, the two words cut and gut differ only in their initial sounds and the two sounds are two different______and the two words are a______pair.
【简答题】A compound is the combination of only two words.()
【单选题】Why will the man probably take only two courses?
A.
Students are limited to two summer courses.
B.
He can attend classes only on Saturday and Sunday.
C.
His financial aid will pay for only two courses.
D.
His summer job will keep him from taking more than two courses.
【简答题】发生炉煤气根据使用气化剂和煤气的热值不同，一般可以分为（）、（）、（）、（）等。
【单选题】I stayed there for only two days but ______ felt like two weeks．
A.
it
B.
what
C.
when
D.
then
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