串行通信的波特率越高，则串行传送数据的速度______。
A．越慢
B．越快
C．与波特率无关
D．由CPU速度决定
参考答案：B
The basic unit of measure in a computer system is the ______. It is the smallest unit in computing. There are some other measures in a computer, such as Kilobyte, Megabyte, Gigabyte and so on.
A．Kilobyte
B．Bit
C．Gigabyte
D．Megabyte
房地产经纪人执业资格注册有效期一般为五年。（）
