—Welcome to our school.
—____[ ]
A. OK.
B. Thanks.
C. Excuse me.
答案:A
如果节点IP地址为62.192.27.25,屏蔽码为255.255.255.0,那么该结点所在子网的网络地址是()
混凝土施工缝应留在结构受剪力小或施工方便处。( )