皮皮学，免费搜题
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【多选题】
目的基因的制备可以通过A.
化学人工合成
B.
基因文库
C.
cDNA文库
D.
PCR
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The influence the parents _________ on their children _________ great.
A.
take; are
B.
take; is
C.
have; are
D.
have; is
【单选题】By the time you get back, great changes______ in this area.
A.
will take place
B.
will be taken place
C.
are going to take place
D.
will have taken place
【单选题】The meeting ____________next week is sure to be a great success.
A.
to take place
B.
to be taken place
C.
to have taken place
D.
being taken place
【单选题】Great changes _____ in the village in the past few years. [ ]
A.
took place
B.
take place
C.
will take place
D.
have taken place
【简答题】He felt a great weight ______ (take)off his mind．
【单选题】Prepositions(介词) ____ in the structure of English.
A.
take part
B.
take a great part
C.
play a large part
D.
play many parts
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