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【单选题】
断裂基因的叙述正确的是A.
结构基因中的DNA序列是断裂的
B.
外显子与内含子的划分不是绝对的
C.
转录产物无需剪接加工
D.
全部结构基因序列均保留在成熟的mRNA分子
E.
原核和真核生物基因的共同结构特点
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举一反三
【简答题】电动机铭牌上的温升是指电机在长期运行时所能允许的最大温度与（）温度之差。
【简答题】A．By check. B．In cash. C．By credit card. D．By mail.
【单选题】听力原文：M: I want to cash this check for my mother, but the teller told me to bring it here. W: Yes, Sir. That's an out-of-town personal check. We wouldn't be able to cash it for you until the proceeds a...
A.
The bank will cash the check immediately.
B.
The bank will issue a new bank account and deposit the money for him.
C.
The bank will cash it for him until the proceeds are collected from the paying bank.
D.
The bank will endorse the check before payment.
【简答题】cash a check
【简答题】cash the check
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