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【简答题】
多项式ab 2 -2ab+a分解因式的结果是______．
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举一反三
【简答题】完形填空。 When Julie was a child, she was a very big fan of animals. As a result, all she ever heard 1 was 'Julie, you should be a vet. You're going to be a great vet. That's what you should do.' 2 when s...
【单选题】“ I know she was in because I heard her radio, but she didn’t open the door” “She ____ the bell.”
A.
mustn’t have heard
B.
may not have heard
C.
needn’t have heard
D.
can’t have heard
【单选题】She was often heard_now I heard her ( )in the next room
A.
to sing,singing
B.
sing ,to sing
C.
to sing ,sung
D.
to sing ,singing
【单选题】" I know she was in because I heard her radio. but she didn't open the door." "She_______ the bell . "
A.
mustn't have heard
B.
may not have heard
C.
needn't have heard
D.
can't have heard
【单选题】I heard that she apples if she was free the next day.
A.
was picking
B.
will pick
C.
is going to pick
D.
was going to pick
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