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【单选题】
这个函数的定义域A.
（-∞，0）∪（0，+∞）
B.
（0，+∞）
C.
（-∞，0）
D.
（-∞，+∞）
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举一反三
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【简答题】简单叙述网桥工作的五个特性
【单选题】When I came back at midnight she ______ finished.
A.
still hadn ’ t
B.
hadn ’ t still
C.
already hadn ’ t
D.
hadn ’ t already
【简答题】活断层区的建筑原则有哪些?
【单选题】以下关于“综述”有关规定的说法，错误的是（）。
A.
检索和阅读文献是撰写综述的重要前提工作
B.
注意引用文献的原创性、代表性、可靠性和科学性
C.
可以罗列文献，但有部分评述的内容
D.
引用文献要忠实文献内容
【简答题】Son’s Help Mr. Lang worked in a factory. As a driver, he was busy but he was paid much. His wife was an able woman and did all the housework. When he came back, she took good care of him and he never ...
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