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【单选题】
下列图中关于P、Q、R、S、G的描述，正确的是 [ ]A.
P中存在着抗性基因，其非编码区通常不具有遗传效应
B.
Q表示限制性内切酶的作用，R表示RNA聚合酶的作用
C.
R能使黏性末端处碱基互补配对
D.
若要获得真核生物的S，则一般采用人工合成方法
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举一反三
【单选题】We require you look into this matter and have the shop assistant to our friend.
A.
apologize
B.
to apologize
C.
apologized
D.
apologizing
【简答题】We require you look into this matter and have the shop assistant apologize to our friend.
【单选题】Excerpt from a letter We require you to look into this matter and have the shop assistant apologize to my friend. Looking forward to hearing from you. Q: This is a letter of _______.
A.
apology
B.
application
C.
notice
D.
complaint
【单选题】Excerpt from a letter We require you to look into this matter and have the shop assistant apologize to my friend. Looking forward to hearing from you. The writer is writing a letter of _________.
A.
apology
B.
application
C.
notice
D.
complaint
【判断题】We require you look into this matter and have the shop assistant apologize to our friend.我们要求您调查此事,并要求您给我们表演节目.
A.
正确
B.
错误
【单选题】Excerpt from a letter We require you to look into this matter and have the shop assistant apologize to my friend. Looking forward to hearing from you The writer is writing a letter of _________.
A.
complaint
B.
notice
C.
application
D.
apology
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