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搜题
【单选题】
心脏病孕妇容易发生心力衰竭的时期是A.
妊娠32～34
B.
妊娠24～26
C.
妊娠28～30
D.
妊娠20～22
E.
妊娠36～37
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反馈参考答案：
举一反三
【单选题】.Not only____the book,but also he remembered what he had read.
A.
he had read
B.
had he read
C.
he did read
D.
did he read
【单选题】Hardly (he had) entered (the office) when he realized (that he had) (forgotten) his wallet.
A.
he had
B.
the office
C.
that he had
D.
forgotten
【简答题】叠加定理是对电流和电压的叠加,对(__)不能进行叠加。
【单选题】Not only ______ the book, but he remembered what he had read.
A.
he had read
B.
had he read
C.
did he read
D.
was he reading
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