老人如果缺乏人际交往,会由于缺乏新的信息刺激,使老人的( )萎缩,智力水平下降。
A.肌细胞
B.脑细胞
C.红细胞
D.白细胞
参考答案:B
It is obvious that talking about something behind others is what everyone will not ________. [ ]
A. come up with
B. put up with
C. keep up with
D. catch up with
常作消毒、洗涤及漱口用的是()
A.分散片
B.包衣片
C.口含片
D.舌下片
E.溶液片