下表是玲玲、贝贝在我市大围山风景区所测得的一日内四个时刻的气温。根据表中数据计算,大围山风景区该日的日平均气温是
A.8℃
B.9℃
C.10℃
D.12℃
答案:C
No one told us ______, so we need your help. [ ]
A. how to do it
B. what to do it
C. how should we do
D. what should we do
802.11b无线局域网的典型解决方案中,单接入点解决方案通过()端口将无线接入点与有线网络相连。
A.100BASE-TX
B.10BASE-T
C.10BASE-5
D.100BASE-FX