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【多选题】
选育杂交种利用杂种优势时，不同组合F1杂种优势不同，其中杂种优势最强的是（）：遗传基础广泛且F2及其后代的杂种优势衰退不明显的是（）。
A.
B.
C.
三交种
D.
综合种
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举一反三
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think of
B.
consider
C.
suppose
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A.
电压
B.
电阻
C.
电流的大小
D.
电流的方向
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【单选题】回路电流方程中，互阻的正负由相邻回路___ __决定。
A.
电压
B.
公共支路的电阻值
C.
电流的大小
D.
电流的方向
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【简答题】Which course has the customer already taken at the school?
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【简答题】配置资源职能是指 通过( )变资源配置,以保证社会的人力,( )得到高效利用。
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【单选题】In deciding _____ a course of action，the candidates tried to estimate its likely impact on the voters .
A.
what to pursue
B.
which to pursue
C.
whether to pursue
D.
if to pursue
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【简答题】阅读理解。 TYPING This course is for those who want to learn to type, as well as those who want to improve their typing. The course is not common. You are tested in the first class and begin practicing at ...
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【简答题】A．The course may not be so good now. B．Prof. Paulson has retired. C．The course is definitely worthwhile. D．The course is even more interesting now.
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【单选题】______ would you solve the problem if this method failed? ( )
A.
What else
B.
How else
C.
How little
D.
How else
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相关题目：
【单选题】We need to () how to solve the problem
A.
think of
B.
consider
C.
suppose
查看完整题目与答案
【单选题】回路电流方程中，互阻的正负由相邻回路( )决定。
A.
电压
B.
电阻
C.
电流的大小
D.
电流的方向
查看完整题目与答案
【单选题】回路电流方程中，互阻的正负由相邻回路___ __决定。
A.
电压
B.
公共支路的电阻值
C.
电流的大小
D.
电流的方向
查看完整题目与答案
【简答题】Which course has the customer already taken at the school?
查看完整题目与答案
【简答题】配置资源职能是指 通过( )变资源配置,以保证社会的人力,( )得到高效利用。
查看完整题目与答案
【简答题】【题目】 ①A course that has impressed you most in college; ②A classmate of yours who has influenced you most in college; ③A campus activity that has benefited most. a campus activity that has benefited yo...
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【单选题】In deciding _____ a course of action，the candidates tried to estimate its likely impact on the voters .
A.
what to pursue
B.
which to pursue
C.
whether to pursue
D.
if to pursue
查看完整题目与答案
【简答题】阅读理解。 TYPING This course is for those who want to learn to type, as well as those who want to improve their typing. The course is not common. You are tested in the first class and begin practicing at ...
查看完整题目与答案
【简答题】A．The course may not be so good now. B．Prof. Paulson has retired. C．The course is definitely worthwhile. D．The course is even more interesting now.
查看完整题目与答案
【单选题】______ would you solve the problem if this method failed? ( )
A.
What else
B.
How else
C.
How little
D.
How else
查看完整题目与答案