下列属于存储设备的是()
A、CPU
B、硬盘
C、显示器
D、打印机
参考答案:B
下列物质能由金属与酸直接反应生成的是( )
A.CuCl2
B.ZnCl2
C.FeCl3
D.AgCl
According to the rules of Daddy, where are we going?, nobody _______ take along with them cash and cell phones.
A.must
B.may
C.will
D.shall