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【单选题】
不同的材料有不同的电阻率，电阻率的大小反映了各种材料（）的好坏。A.
绝缘性能
B.
半导体性能
C.
导电性能
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】My Stroke of Luck. Synonym :
【单选题】流行性脑脊髓膜炎流行有以下哪个特点
A.
呈地方性流行
B.
人是唯一的传染源
C.
新生儿也易患流行性脑脊髓膜炎
D.
流行性脑脊髓膜炎流行时，仅少数病人发展成败血症或化脓性脑膜炎
E.
以上都不是
【简答题】2/什么叫做作用效应 ? 什么叫做结构抗力 ?
【单选题】听力原文：W: Finding this china cabinet was a real stroke of luck. Because of the scratch on the side, the dealer charged me $50 less than the regular price. M: You were very lucky, and with a little polis...
A.
He thinks it is a pity that there is a flaw on it.
B.
He thinks it is a good bargain but it could be much cheaper.
C.
He thinks it is a real bargain because the flaw is hardly noticeable.
D.
He thinks the woman should show it to her friends.
【单选题】It was a stroke of luck that she had always been able to write with ______ hand, which sometimes helped her a lot.
A.
both
B.
each
C.
every
D.
either
【单选题】流行性脑脊髓膜炎流行有以下哪个特点（）
A.
呈地方性流行
B.
新生儿也易患流行性脑脊髓膜炎
C.
人是唯一的传染源
D.
流行性脑脊髓膜炎流行时，仅少数患者发展成败血症或化脓性脑膜炎
E.
以上都不是
【简答题】What a stroke of luck I had!
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