站立位阴囊出现包块,平卧位消失者,是
A.腹股沟斜疝B.交通性鞘膜积液C.两者均是D.两者均不是
参考答案:C
—Are you satisfied with the answer?
—Not at all. It couldn't have been ______.
A.worse
B.so bad
C.better
D.the worst
室管膜瘤发病率最高的部位是( )
A.第四脑室 B.三脑室前部 C.三脑室后部 D.侧脑室E.室间孔旁