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你在做Southern印迹分析,并且刚完成了凝胶电泳这一步。根据方案,下面一个步骤是用NaOH溶液浸泡凝胶,使DNA变

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When we are online, our brains cannot form. distinctive and profound thinking.

听材料,回答下列问题:

A. Pressure reducing.
B. Work deadlines.
C. Family obligation.
D. Shopping for holidays.

下面影响口服缓控释制剂设计的理化因素丕正确的是 ()

A. 药物的溶解度
B. 油水分配系数
C. 生物半衰期
D. 剂量大小
E. 药物的稳定性

A.Malting educated changes nationwide takes decades of years.B.The younger studen

A. Malting educated changes nationwide takes decades of years.
B. The younger students attend schools, the better their results are.
C. Nine years of compulsory schooling is ideal in Norway.
D. More years at school result in higher test scores.

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