安宫牛黄丸的用法（）
A．脉虚者人参汤下，脉实者金银花、薄荷汤下
B．蜜丸，空心盐白汤送下
C．蜜丸，清晨温酒下
D．蜜丸，午时姜汤下
参考答案：A
A．(A) The director is too busy to attend to your proposal right now.
B．(B) The director will help you read the proposal tomorrow morning.
C．(C) You should hand in your proposal no later than tomorrow morning.
D．(D) You can make an appointment to see the director the next day.
虚拟存储器是为了使用户可运行主存容量大得多的程序，它要在硬件之间进行信息动态调度，这种调度是由( )来完成的。
A．硬件
B．操作系统
C．BIOS
D．操作系统和硬件
