There __ no water in the well.
A.has
B.are
C.is
D.have
答案:C
8,11,13,17,20,( )
A.18 B.20 C.25 D.28
男性,30岁,右侧阴囊内发现可复性肿物,透光试验阴性,诊断考虑为
A.睾丸鞘膜积液B.股疝C.腹股沟直疝D.腹股沟斜疝E.隐睾