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【单选题】
下列关于嘌呤核苷酸从头合成的叙述正确的是
A.
嘌呤环的氮原子均来自于氨基酸的α-氨基
B.
氨基甲酰磷酸为嘌呤环提供甲酰基
C.
次黄嘌呤鸟嘌呤磷酸核糖转移酶催化IMP转变成GMP
D.
由IMP合成AMP和GMP均有ATP供能
E.
合成过程中不会产生自由嘌呤碱
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【单选题】Go ahead and you will see a bus stop of the park.
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【多选题】Why is the Canterbury Cathedral a shrine for pilgrims?
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The Canterbury Cathedral houses the shrine of Archbishop Thomas Becket.
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【单选题】Go ahead and you will see a bus stop of the park.
A.
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查看完整题目与答案