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【单选题】
数量性状遗传 ( )A.
由环境因素决定
B.
由单基因决定
C.
由遗传和环境因素共同决定
D.
变异曲线呈双峰或三峰
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皮皮学刷刷变学霸
举一反三
【单选题】The passage is about a girl ______.
A.
who came to visit her grandfather
B.
who had been away in college and came back home
C.
who returned home later than the appointed time
D.
who ran away from home and returned
【简答题】从2009年起，我国把每年的( )月( )日定为防灾减灾日。
【简答题】什么方法的重写?怎样在子类中使用被子类重写的父类方法?
【简答题】Who became Buck’s new ?
【单选题】Pearl S. Buck, who won the Nobel Prize in 1938, wrote many novels about China, and the best known is
A.
The Good Earth.
B.
The Caine Mutiny.
C.
The Town.
D.
The Portrait of a Lady.