皮皮学，免费搜题
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【单选题】
人工诱变培育新品种，目前最常用的方法是 [ ]A.
用射线或激光照射
B.
DNA重组技术
C.
秋水仙素处理萌发的种子
D.
人工杂交
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】So far there have not been definite data to confirm_________.
A.
where fewer people die from heart problem．
B.
whether thev have the risk of heart attack，heart failure or stroke．
D.
would probably have lower rates 0f heart disease． D．how to test a person’s NT—pmBNP level in the blood by himself．
E.
his heart muscle would be under pressure in some way． D．that napping is 0f great benefit to women too.
【单选题】《长恨歌》第一段主要是写
A.
唐玄宗宠爱杨贵妃，荒淫失政
B.
杨贵妃之死和唐玄宗在流亡途中的悲伤
C.
唐玄宗返回京城后对杨贵妃的深切怀念
D.
方士寻觅杨贵妃亡魂，使两人得以互通讯息，重申盟誓
【单选题】《长恨歌》第一段主要是写()。
A.
杨贵妃之死和唐玄宗在流亡途中的悲伤
B.
方士寻觅杨贵妃亡魂，使两人得以互通讯息，重申盟誓
C.
唐玄宗宠爱杨贵妃，荒淫失政
D.
唐玄宗返回京城后对杨贵妃的深切怀念
【单选题】people study Latin today than 50 years ago, and still people study Greek.
A.
A fewer；a fewer
B.
Fewer；a fewer
C.
Fewer；fewer
D.
A fewer；fewer
【单选题】So far there have not been definite data to confirm__________．
A.
where fewer people die from heart problem．
B.
whether they have the risk of heart attack．heart failure or stroke．
D.
would probably have lower rates of heart disease． D．how to test a person’s NT—proBNP level in the blood by himself．
E.
his heart muscle would he under pressure in some way． D．that napping is of great benefit to woman too．
【单选题】I have work to do today than before, so I have more time _____.
A.
less / relax
B.
fewer / to relax
C.
less / to relax
D.
fewer / relax
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