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【单选题】
不参与正常肺回缩力形成的因素是A.
肺的弹性纤维
B.
肺表面活性物质
C.
肺泡表面张力
D.
胸内负压
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反馈参考答案：
举一反三
【简答题】It was (bore) ______ to sit on the train without books to read.
【单选题】John’s bad habit is _____ without thorough understanding. abit is _____ without thorough understanding. A. read B. being read
A.
read h
B.
being read
C.
to be read
D.
reading
【单选题】With good reading skills, you can ______．
A.
understand anything you read without difficulty
B.
work out the author's meaning if only you concentrate on the book
C.
understand what you read with the help of a good dictionary
D.
concentrate on whatever you read
【简答题】锂的标准电极电势比钠或钾的标准电极电势小,为什么 Li 与水反应没有其它金属与水的反应激烈?
【简答题】当一个C程序只有一个函数时,这个函数的函数名必然是 ___ __ 。
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