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阿糖胞苷抗肿瘤作用为()

单选题
2021-12-23 23:52
A、掺入DNA中干扰其复制
B、阻止脱氧尿苷酸甲基化为脱氧胸苷酸
C、阻止四种脱氧核苷酸聚合成DNA链
D、阻止胞苷酸转变成脱氧胞苷酸
E、阻止肌苷酸转变为鸟苷酸
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正确答案
C

试题解析

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