【单选题】【消耗次数：1】
人体内嘌呤代谢的最终产物是
①
尿素
②
乳清酸
③
尿囊素
④
尿酸
⑤
β-氨基酸
参考答案：
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相关题目
【单选题】
下列有关氨基酸代谢的论述错误的是
①
氨基酸的吸收是主动转运过程
②
氨基转移作用是所有氨基酸共有的代谢途径
③
氨基酸脱氨基的主要方式是联合脱氨基作用
④
氨基酸经过脱氨基作用后生成α-酮酸和NH<sub>3</sub>
⑤
氨基酸经脱羧基作用后生成胺和CO<sub>2</sub>
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Thank you ever so much for the scarf you bought me.____________
①
No thanks.
②
No, it’s not so good.
③
I’m glad you like it.
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Please don’t say so.
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Everybody likes her because she is always _______ .
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cheerful
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sad
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beginning
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appreciated
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I hate the weather here.
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My hair is getting a bit longer.
③
I am working part time in a bookshop, you know.
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Yeah, thanks for coming.
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Where are you going?
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When will you leave?
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How is everything?
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①
to bring
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bring
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bringing
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Don’t make faces in class.____________
①
Excuse me, I am wrong.
②
Certainly, I will.
③
That’s OK.
④
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