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【判断题】
把DNA链5ˊ-OH末端和另一DNA链的3’-P末端连接起来,使二者生成磷酸二酯键
A.
正确
B.
错误
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【简答题】根据短文内容判断正(T)误(F)： Jim went to school to study history, but when he finished his first year, he didn't pass the exam and the teacher said to him, 'You have to leave school.' When the boy's father hear...
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