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【简答题】
基因克隆中载体是携带目的 DNA 进入宿主细胞的运载工具,主要载体的类型包括 载体、______载体和,其中______载体兼具另外两种的优点。
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反馈参考答案：
举一反三
【单选题】Why doesn’t Allegheny College plan to drop merit aid entirely?
A.
Raising tuitions have made college unaffordable for middle-class families.
B.
With rising incomes, fewer students are applying for need-based aid.
C.
Many students from middle-income families have come to rely on it.
D.
Rising incomes have disqualified many students for need-based aid.
【单选题】孕40周出生的男婴,出生体重2300g,身长46cm,皮肤红润,脂毛少足底际纹较多,最可能为()
A.
早产儿
B.
足月儿
C.
足月小样儿
D.
过期产儿
E.
极低体重儿
【简答题】阅读理解：Why College Is Not Home The college years are supposed to be a time for important growth inD（2016北京高考英语真题及答案） Why College Is Not Home The college years are supposed to be a time for important gro...
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