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【简答题】
并列式机构组合的特点是____。
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【简答题】Today is Sunday. I’ve been in Canada for two maonths. This is the first time that I’ve been away my family for such a 小题1: long time. With the help of Katia,a roommate of me, I’ve 小题2: soon got ...
【简答题】已知a-b=1，ab=20，求a 2 +b 2 ．
【单选题】We don't know what ______ to her. [ ]
A.
happen
B.
was happened
C.
is happened
D.
has happened
【单选题】Now I’ve been out of ________ work for weeks．I’ve joined the ranks of ________ unemployed． [ ]
A.
the；/
B.
the；the
C.
/；the
D.
/；an
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