扁桃体和周围淋巴结变小或缺如常提示
A.T淋巴细胞缺陷
B.B淋巴细胞缺陷
C.巨噬细胞缺陷
D.自然杀伤细胞(N缺陷
E.中性粒细胞缺陷
参考答案:B
The number of people invited___fifty, but a number of them ____absent for different reasons.
A.were;was
B.was;was
C.was;were
D.were;were
周代,人们四时祭祀祖先,冬祭叫()。
A.礿
B.禘
C.尝
D.烝