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【单选题】
关于核糖体描述不正确的是 A、核糖体是由rRNA和蛋白质组成的复合体B.
真核生物核糖体上有3个位点，分别是A位、P位和E位
C.
原核生物核糖体包含的RNA是23S rRNA、16S rRNA和5S rRNA
D.
真核生物核糖体包含的RNA是28S rRNA、18S rRNA、5.8S rRNA和5S rRNA
E.
核糖体由大、小两个亚基组成
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【简答题】完形填空（20分） Not so long ago, if you avoided drinking water during a workout（训练）, you were considered tough. Today, most experts 36 , you would be considered unintelt. Even in you don’t sweat ...
【单选题】Computer brain games may not offer the big mental boost many were hoping for, suggests new research, but brain scientists and brain-game experts don't all agree on the findings. The study, out this we...
A.
they can make general brain powerful
B.
they may offer the big mental boost
C.
they can transfer to improvement in cognitive function
D.
they have nothing to do with improving cognitive function
【简答题】试述大学生如何投身崇德向善的道德实践。
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