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【单选题】
引起咯血最常见的疾病是A.
肺结核
B.
肺瘀血
C.
肺部恶性肿瘤
D.
肺炎球菌性肺炎
E.
肺梗死
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【简答题】能引起人体发生反应的各种环境变化，统称为
【简答题】请简述isArray方法的使用方式并且举例
【简答题】金属的导热系数大都随其纯度的增加增加,随其温度的升高而() 。
【单选题】听力原文：W: Hello, everyone. Welcome again to Consumer's Choice, which is the last program in our present series, isn't that right? M: Yes, that's right. The story of how a listener's determination has qu...
A.
To be a keen photographer is too costly.
B.
She has to develop 10 rolls of films.
C.
All her films were vanished.
D.
After the trip, she was too tired to choose a good one.
【单选题】听力原文：W: Hello, everyone. Welcome again to Consumer's Choice, which is the last program in our present series, isn't that right? M: Yes, that's right. The story of how a listener's determination has qu...
A.
To be a keen photographer is too costly.
B.
She has to develop 10 rolls of films.
C.
All her films were vanished.
D.
After the trip, she was too tired to choose a good one.
【简答题】金属的导热系数大都随其纯度的增加而______，随其温度升高而______。
【简答题】The last program in the science series, I mean, the Origin of Life, really arouses the curiosity of me.
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