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搜题
【单选题】
估算狭义遗传率时由2VF2-(VB1+VB2)计算所得是:A.
加性方差值
B.
显性方差值
C.
遗传方差值
D.
环境方差值
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】在读零件图时，以下说法正确是的______。
A.
零件图为零件的加工提供必要的技术条件
B.
读零件图可运用组合体的读图方法
C.
零件测量主要依据于零件的加工精度
D.
零件的材料决定了采用何种加工方法
【单选题】-----Try not to think in Chinese when you’re speaking English. ------_______I’ll try.
A.
Nonsense！
B.
well done ！
C.
That’s it !
D.
Incredible!
【单选题】There are two same test tubes A and B. Tube A is heated at one end, and the temperature in A is changing from 900K to 300K uniformly. Gas in tube B has a constant temperature 600K. Compare the number ...
A.
A>B
B.
A=B
C.
A
D.
It depands on other condition.
【单选题】The combustion of methanol occurs according to the following equation: 2CH 3 OH + 3O 2 → 2CO 2 + 4H 2 O I n a particular reaction, 9.8moles of CH 3 OH are reacted with an excess of O 2 , caculate t...
A.
2mol
B.
10mol
C.
20 mol
D.
1 mol
【单选题】We're ______ to hand in our homework next week.
A.
proposed
B.
supposed
C.
opposed
D.
imposed
【简答题】双重职业路径
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