______believes that language samples can be exhaustively described at any structural level of descriptions.

A．The Grammar-Translation Method

B．The Cognitive Approach

C．The Audiolingual Method

D．The Communicative Approach

男 * * 管最狭窄的部分是()
中央有精阜的是()
* * 球腺开口于()

A．前列腺上部

B．膜部

C．海绵体部

D． * * 球部

E．射精管