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【单选题】
人工授精时，鸡的配种公母比为（）。
A.
1：10
B.
1：15
C.
1：20
D.
1：30-50
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题目标签：
授精
人工授精
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参考解析：
刷刷题刷刷变学霸
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A.
亲鱼少受伤
B.
设备简单，受条件限制较小
C.
受精卵不混有敌害和杂物
D.
便于进行杂交工作
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A.
正确
B.
错误
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A.
AIH
B.
AID
C.
IVF
D.
AI
E.
SM
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