题目内容

篇章结构。请为文章的每一部分选择合适的主旨大意。

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A. He has only written three stories and that is not enough.
B. He has no idea about his new writing assignment.
C. Writing three stories in two months is too much for him.
D. The two-month creative writing class is boring.

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A. Queen Elizabeth I.
B. Sir John Harrington.
C. Thomas Crapper.
D. Queen Elizabeth I's godmother.

2019级《滑动轴承实验》实验报告,格式要求PDF版,文件名样式:“学号+姓名+班号+实验名称”。例如:14190101+王某某+141901+滑动轴承实验

简述有哪些机制可产生蛋白质的多样性。

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