To a router, a flow is a (1) of packets that share the same characterstics, such as traveling the same (2) , using the same (3) , having the same kind of security, and so on. A router that suppors the handling of flow labels has a (4) table. The table has an entry for each active flow label; each entry defines the (5) required by the corresponding flow label.

5（）

A．quality

B．traffic

C．services

D．route

星级饭店卫生间配备的浴帽质量应以塑料薄膜制品为主，要求洁净无破损和（）等。

A、柔软性好

B、耐热性好

C、弹性适宜

D、透气性好