看地图,面对地图,通常是( )
A.上南下北,左西右东
B.上南下北,左东右西
C.上北下南,左东右西
D.上北下南,左西右东
答案:D
通过局域网接入Internet网时首先必须在计算机中安装网卡和配置相应的驱动程序。()
A growing number of people have ______ great importance to food safety.
A.attached
B.devoted
C.paid
D.employed