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【单选题】
()证明了酶的本质是蛋白质A.
施旺
B.
巴斯德
C.
萨姆纳
D.
芬恩
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举一反三
【单选题】I wished it but it did.
A.
occured not
B.
did not accur
C.
had not occurred
D.
would not occur
【简答题】It was getting dark． Some children and two Canadian women were still skating near a big hotel． They (36) (have)a good time． A boy said to his friends，'I (37) (not skate) on a real lake so far．It's won...
【简答题】纯物质P-V图临界等温线在临界点处的斜率和曲率都等于（）
【单选题】听力原文：W: This business of having to be a role model, where you can never relax, hang loose, can you? M: Well, I can't exactly go to hang with my friends at some of the places we used to go to, and just...
A.
Because it will help the public.
B.
Because it will do harm to his reputation.
C.
Because he is always fully occupied as a role model.
D.
Because he always raises hell with others.
【简答题】什么是主任务测量法?集体包括哪几种方法?
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