关于流行性感冒的预防，以下不正确的是（）
A.劳逸结合
B.饮食合理
C.预防性服药
D.空气流通
E.生活规律
参考答案：C
Hearing that he had been appointed _____ general manger of the company, he felt a wave of excitement
flooding through his body. [ ]
A. X
B. a
C. the
D. as the
微型计算机的运算器、控制器、内存储器的总称是______。
A．外设
B．主机
C．CPU
D．硬件系统
