鼠标器是当前计算机中常用的( )。
A.控制设备
B.输入设备
C.输出设备
D.浏览设备
参考答案:B
解析: 目前最常用的输入设备就是鼠标,其次是键盘。
—I can't do my homework. It's too hard for me.
—_______. We can help you. [ ]
A. Don't worry
B. That's all right
C. That's right
D. It's fun, I think
除南极洲外,其它各大洲都有分布的气候类型是( )
A.亚热带季风气候
B.地中海气候
C.温带大陆性气候
D.热带草原气候