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【单选题】
幼儿3岁时身长约（ ）cm，为出生时的2倍。A.
80
B.
100
C.
120
D.
150
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反馈参考答案：
举一反三
【简答题】试简要说明集中荷载作用下无腹筋简支梁的三种剪切破坏形态,及其破坏特征。
【单选题】He can hardly stay awake because he is so tired, _______?
A.
does he
B.
isn’t he
C.
can he
【简答题】连词成句。 February, in, Beijing, on, the, we, leave, for, afternoon, first (.) ___________________________________________________________________
【单选题】To stay awake, he finished a cup of coffee and ordered .
A.
the other
B.
other
C.
another
D.
the others
【单选题】He can hardly stay awake because he is so tired, _____ ?
A.
does he
B.
isn't he
C.
can't he
D.
can he
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