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【简答题】
According to the researchers, cream sours fast than butter because bacteria ________. A) are more evenly distributed in cream B) multiply more easily in cream than in butter C) live on less fat in cream than in butter D) produce less waste in cream than in butter
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【单选题】血液中有一种含铜的呈蓝色的蛋白质分子，其相对分子质量约为151000。已知该分子中铜的质量分数为0. 34%，则平均每个蛋白质分子中的铜原子数为 [ ]
A.
8
B.
6
C.
4
D.
2
【简答题】After the war,a new school building was put up ________there had once been a theater. 2. It was once a time________I had no interest in study and wanted to drop out of school. 3. ________________(educ...
【简答题】I wish I had more best friends! A. strongly agree B. agree C. neutral D. disagree E. strongly disagree
【简答题】Complete the following sentences
with the words below . Change the word forms if necessary. 1. I wish I had a more confident
____________. 2. Her
appearance had left on me an impression of high-born...
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