单项选择题
A.in internal surface of fundus of bladder B.below apex of urinary bladder C.in the body of bladder D.below neck of bladder E.in base of prostate
A.prostate B.apex of urinary bladder C.ampulla of ducts deference D.neck of uterus E.seminal vesicle
A.angular notch B.pyloric antrum C.bed of stomach D.pyloric canal E.cardia