快捷方式就是一个扩展名为()的文件，一般与一个应用程序或文档关联。
A．lnk
B．idx
C．txt
D．dll
参考答案：A
The bus was empty, there was _______ on it. [ ]
A. somebody
B. anybody
C. nobody
D. everybody
危险品依据其危险性可划分为6类。
