It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ________.                                      (2012·湖北，29)

A．symptom

B．similarity

C．sample

D．shadow

青春期后双侧隐睾后果为（）

A.恶变为睾丸肿瘤

B.双睾丸萎缩导致男性内分泌不足

C.丧失生育能力

D.睾丸松解固定术后尚能恢复正常生育能力

E.影响第二性征