启动计算机时，按（）键可打开BI(1)S设置界面。
A. F8
B. F1
C. F10
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Internet实现了分布在世界各地的各类网络的互联，其通信协议是（）。
A. 局域网传输协议
B. 拨号入网传输协议
C. TCP／IP协议
D. SI协议集
We can draw a conclusion that ______.
A. to continue to develop and improve computer networks is one of our aims in the near future
B. the development of computers has already reached its peak
C. electronic computers have hindered the development of molecular computers
D. our society would have developed faster without computers
下列有关“组合图形”的描述，正确的是（）。
A. 组合后的图形不能被裁剪
B. 组合后的图形不能被复制
C. 组合后的图形不能被再组合
D. 组合后的图形不能取消组合
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