健康教育最终目标是

A．有健康知识

B．有健康行为

C．有防病能力

D．既有健康知识，又有健康行为

E．有自我保健能力

Traditional network layer packet forwarding relies on the information provided by network layer  (1) protocols, or static routing, to make an independent (2) decision at each hop within the network. The forwarding  (3) is based solely on the destination  (4) IP address. All packets for the same destination follow the same path across the network if no other equal-cost paths exist. Whenever a router has two equal-cost  (5) toward a destination, the packets toward the destination might take one or both of them, resulting in

空白（2）处应选择（）

A.forwarding

B.connecting

C.routing

D.killing