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【单选题】
水泥细菌指的是( )。A.
水化硫铝酸钙
B.
水化硅酸钙
C.
氢氧化钙
D.
二水石膏
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【简答题】短文填词。 Baseball is one of the favorite 1 ( sport) in the USA. Children play baseball in sports fields or parks 2 (happy) . At summer picnic, there is often an informal ( 非正式的 ) baseball . Boys and ...
【简答题】Hello. My name is Bill. I’m a 1 boy. I study in Tiechong Middle School. There are over nine 2 students and more than eighty 3 in our school. Two thirds of the teachers 4 women. My school is not very b...
【单选题】There are nine planets in the solar system,_____are larger than our earth.
A.
some of that.
B.
some or them.
C.
some of which.
D.
some of them.
【简答题】There are nine of them, so ______ get into the car at the same time. a. they may not at all b. all they may not c. they can’t all d. all they can’t
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