The equivalents of millions of telephone （ ） are transmitted on a single fiber,thinner than a human hair.

A sensor network is （ ） of a large number of sensor nodes that are densely deployed （ ） inside the phenomenon or very close to it.

Some operating systems prefer a wireline （ ） over wireless because it is assumed to have more bandwidth and be more reliable, and some operating systems （ ） the user to define the preference order of the available interfaces.

阅读下面的短文，回答问题 From the paragraph above，we can see that the router （ ） a forwarding table according to the routing table and possible routing policies existing in the router. When an IP packet arrives at a router, the （ ） part of packet is normally checked by the router. An IP router checks every IP Packet individually and makes the forwarding decision based on （ ）.

通信科技人员职业道德的两重性是指（1） 。

同心同德、团结协作是（2）道德原则在科技职业活动中的具体体现。