【多选题】RIP 路由协议有一个定时器,该定时器定义了一条路由从度量值变为16 开始,直到它从路由表里被删除所经过的时间,那么__
B.
该定时器为Garbage-Collect 定时器
【单选题】We _____ in this pool when we were young, but now it _____ fish.
A.
are used to swim; used to keep
B.
are used to swimming; used to keep
C.
used to swimming; is used to keep
D.
used to swim; is used for keeping
【单选题】( )运算符是if..else的语句的精简版,也是唯一带有3个操作数的运算符。
【单选题】We write to each other, but we sending e-mails on the Internet now. [ ]
C.
were used to; are used to
【单选题】某人向银行贷款,甲银行年利率为 17% ,一年计息一次;乙银行年利率为 16% ,每月计息一次,问他分析的结果是( )。