问题
选择题
Thank you for sending us________ fresh vegetables of many kinds. You have done us_________great
service. [ ]
A. /; a
B. the; a
C. /; /
D. the; /
答案
答案：A
搜题请搜索小程序“爱下问搜题”
Thank you for sending us________ fresh vegetables of many kinds. You have done us_________great
service. [ ]
A. /; a
B. the; a
C. /; /
D. the; /
答案：A
阅读以下说明，回答问题1至问题5。
【说明】
某企业的网络安装防火墙后其拓扑结构如图4-1所示。
【问题2】 为图4-1中， (2) 处选择合适的设备。
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