皮皮学，免费搜题
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【单选题】
空位属于哪种晶体缺陷（）A.
点缺陷
B.
线缺陷
C.
面缺陷
D.
体缺陷
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皮皮学刷刷变学霸
举一反三
【单选题】What did the man do on his first day at school?
A.
He took all his toys with him.
B.
He took his Teddy with him.
C.
He didn't take any toys with him.
D.
He took some of his toys with him.
【简答题】某些双子叶植物的根除正常的次生构造外,还可以产生一些特有的维管束,通常称之为 () ,也称其为三生构造。
【单选题】–What did you think of the place? --- I didn’t care for it at ____first, but after ____ time I got to like it.
A.
/; a
B.
the; a
C.
a; the
D.
/; the
【简答题】小儿生长发育最为迅速的时期是：( ) A．婴儿期 B．幼儿期 C．学龄前期 D．学龄期 E．青春期
【单选题】-What did you think of ______ president?-I didn’t care for him at first，but after ____ time I get to like him.
A.
the； a
B.
/； the
C.
the； the
D.
/； a
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