关于"天癸"的说法错误的是
A.天癸就是月经
B.先有天癸后有月经
C.肾气盛才能天癸至
D.天癸男女都有
E.天癸是一种阴精
参考答案:A
There ______ snow in Canada every year. [ ]
A. has many
B. has much
C. are many
D. is much
急性感染性喉炎,以______、______、______、______为临床特征。