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【判断题】

公牛的等级(品质)要优于母牛。

A.
正确
B.
错误
题目标签:公牛
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参考答案:
参考解析:
.
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【单选题】Once the king of India fell ill and sent for his doctor. The doctor came, examined him and said, "You will be well again in a few days if you take bull’s (公牛的) milk." The king was very surprised, for ...

A.
Because she was forced to do it.
B.
Because she often washed clothes there.
C.
Because she enjoyed washing clothes there.
D.
Because she wanted the king to notice her.

【单选题】适合于鉴定种公牛的方法为()。

A.
同期同龄女儿比较法
B.
多性状选择
C.
母女对比法
D.
不同后代比较法
E.
公牛指数法

【单选题】给公牛导尿带来困难的结构是( )。

A.
尿道峡前方的半月形粘膜壁
B.
精阜
C.
尿道突
D.
尿道内口
E.
尿道脊