排泄管开口于前 * * 的是（）
A.睾丸
B.附睾
C.前列腺
D.精囊
E. * * 球腺
参考答案：E
She wants _____.
A．three dozen of these eggs
B．three dozens of these eggs
C．three dozen of this eggs
D．three dozen of these egg.
事例
