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【简答题】
先化简，再求值： （1）（x﹣5y）（﹣x﹣5y）﹣（﹣x+5y） 2 ，其中x=﹣1，y=0.5；（2） ，其中x=2，y=﹣3．
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举一反三
【单选题】She is the only one of the few girls who ______ passed the examination.
A.
was
B.
were
C.
has
D.
have
【单选题】She is the only one to _ the traffic accident.
A.
survive
B.
survived
C.
survival
D.
be survived
【单选题】The Fench book _______ Shirly. She is the only one that is studying French. [ ]
A.
belongs to
B.
is belong to
C.
belongs
【单选题】She is the only one among the writers who shoft stories for children．
A.
woman；writes
B.
woman; write
C.
women；write
D.
women；writes
【单选题】She is the only one of the students who ________by the headmaster. [ ]
A.
are praised
B.
is praised
C.
have been praised
D.
has been praised
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