问题 单项选择题

下列对IPv6地址FE80:0:0:0801:FE:0:0:04A1的简化表示中,错误的是______。

A.FE8::801:FE:0:0:04A1
B.FE80::801:FE:0:0:04A1
C.FE80:0:0:801:FE::04A1
D.FE80:0:0:801:FE::4A1

答案

参考答案:A

解析: 由于IPv6地址中许多地址的内部可能有很多个0,所以有几种优化方法可以使用。第一种,在一个组内前导0可以省略,比如04A1可以写成4A1。第二种,16个“0”位构成的一个或多个组可以用一对冒号来代替。因此此题中的IPv6地址可写成B、C、D选项中的任意形式。而A中FES0中的“0”是不可以省略的,所以选项A错误。

句型转换

A French writer __    a story about a cat and a parrot(鹦鹉).

A friend of __     came to visit him one day. The friend said, "I' m going away for a short time. Will you please  __    my parrot for me?"The writer said he would do so, and his friend __           his parrot to the house. The cat saw the parrot and wanted to know whether(是否) it was a bird or not. If so, it would be nice__    . Very__    the cat came nearer and nearer. It was thinking how nice it would be to have this animal for its meal.

The poor parrot was very afraid. It didn' t know __     at first. It kept quiet and didn' t move __     the cat was near enough to jump on it. Then suddenly the parrot asks, " __    you have your breakfast?"

The cat is afraid. It ran away as fast as it can. Maybe it was saying to itself, "That thing can speak. It can' t be a bird. It must be __     !"

小题1:A. spoke            B. told             C. said

小题2:A. his               B.him                     C.she

小题3:A. help              B. look for              C. look after

小题4:A. take              B. brought              C. put

小题5:A. to play           B. to drink              C. to eat

小题6:A. slowly            B. quickly             C. soon

小题7:A. him               B. how to do           C. what to do

小题8:A. when              B. that                  C. until

小题9:A. Didn' t            B. Weren' t             C. Were

小题10:A. a bird            B. a cat                  C. a man

单项选择题