Don't talk in class, ? [ ]
A. do you
B. will you
C. are you
D. shall we
答案:B
Alzheimer病发后期主要表现是()
A.生活不能自理
B.幻觉
C.妄想
D.记忆障碍
E.智能全面减退
怎样做到对客热情和蔼?