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【简答题】
水不能为人的生命活动提供能量，不是营养物质．______．
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反馈参考答案：
举一反三
【简答题】腹膜整体观配音 腹膜.mp4
【单选题】Task 2 You will hear eight short conversations. After each conversation, you should decide on the best answer from the four choices marked A, B, C and D.
A.
Go to see the later show.
B.
Wait for ten minutes.
C.
Come back in ten minutes.
D.
Never go to the movies.
【单选题】关于蛋白质分子三级结构的描述，正确的是
A.
天然蛋白质分子均有这种结构
B.
具有三级结构的多肽链都具有生物学活性
C.
三级结构的稳定性主要由肽键维系
D.
亲水基团多聚集在三级结构的内部
E.
决定其空间结构的因素是辅基
【单选题】Task 2 You will hear eight short conversations. After each conversation, you should decide on the best answer from the four choices marked A, B, C and D.
A.
The children.
B.
A film.
C.
The guests.
D.
A broken TV.
【单选题】Task 2 You will hear eight short conversations. After each conversation, you should decide on the best answer from the four choices marked A, B, C and D.
A.
To a concert.
B.
To a party.
C.
To a shop.
D.
To a meeting.
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