某AT89S51单片机串行口，传送数据的帧格式由1个起始位（0）、7个数据位、1个偶校验和1个停止位（1）组成。当该串行口每分钟传送1 800个字符时，试计算出它的波特率。

未知题型

Why is the fall the best season for snapping pictures?A...

单项选择题Why is the fall the best season for snapping pictures? A.  It has the best colors of the nature B. It is the third season in a year. C. We have a long holiday. D. There are many festivals in the fall.

函数Y=xlnx的单调增加区间是_______．

未知题型函数Y=xlnx的单调增加区间是_______．