血液中检出HBeAg的意义是（）

A.HBeAg阳性血清中Dane颗粒较多

B.HBeAg阳性病人具有较大的传染性

C.患者肝脏病变较轻，预后好

D.患者肝脏病变重，预后较差

E.血清抗-HBe阳性者，预后好

He can swim very well, _____ he doesn't want to join the swimming club.   [ ]

A. and        

B. but        

C. /          

D. or