— Do you think Li Hua has passed the English examination?

— No, If so, he ______ us yesterday. 

A．would tell

B．told

C．would have told

D．had told

假定由网络管理站向代理发送如下命令：
SetRequest (ipRouteDest.10.1.2.3=10.1.2.3,
ipRouteMetric.10.1.2.3=2，ipRouteNextHop.10.1.2.3=10.5.4.3)
因为对象标识符ipRouteDest.10.1.2.3不存在，所以代理拒绝执行这个命令，此时网络管理站将接收到的返回信息为 (63) 。

A．tooBig

B．noSuchName

C．badValue

D．genError