题目内容

听力原文：Did you have a good time？
(10)

A. It's all right.
B. Yes, we had a good time.
C. That's Ok.

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胆固醇是转化合成睾酮、孕酮和雌二醇等性激素的前体物质。 ()

A. 正确
B. 错误

【B5】

A. on
B. in
C. for

听力原文：M: Do I look nice in this blue shirt, dear？
W: Don't you think you're too big for it？
Q: What does the woman think of the man's shirt？
(23)

A. It's very nice.
B. Its color is good.
C. It doesn't fit him.

尿素的合成主要在肝脏的线粒体和胞液中进行，合成一分子尿素需消耗四分子ATP，而精氨酸代琥珀酸合成酶是尿素合成的关键酶。 ()

A. 正确
B. 错误