题目内容

Questions 19 to 22 are based on the conversation you have just heard.

A. She’s studying in the flat.
B. She’s watching TV in the flat.
C. She’s tidying her flat.
D. She’s doing nothing.

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骨骼肌细胞兴奋-收缩耦联的结构基础是______。

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Passage Two Questions 30 to 32 are based on the passage you have just heard.

A. The course material. B. Others’ misuse of technology.
B. C. Discussion topics. D. The teacher’s class rule.

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