计算机常用的输入输出设备除键盘外，还有（）。
A.鼠标器
B.显示器
C.打印机
D.以上都是
参考答案：D
---My new job is not as wonderful as I expected.
---Well, as the proverbs goes, “_________”
A．A year’s plan starts with spring.
B．A good beginning is half done
C．A light heart lives long.
D．The grass is always greener on the other side.
污水处理场处理的是含硫含碱的污水。
