那种情形下可以进行无竞争的随机接入：（）A.由Idle状态进行初始接入 B.无线链路

发布时间：2020-03-06 19:28 │ 来源：www.tikuol.com

题型：单项选择题

问题：

那种情形下可以进行无竞争的随机接入：（）

A.由Idle状态进行初始接入

B.无线链路失败后进行初始接入

C.切换时进行随机接入

D.在Active情况下，上行数据到达，如果没有建立上行同步，或者没有资源发送调度请求，则需要随机接入

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      Hi, my name is Peter. Last summer I had a   1   vacation. I went across  the USA   2   my parents
by car. We drove six to eight   3    a day. In big cities, we stayed in big hotels. The food    4 usually
delicious. Most of the hotels had swimming pools and game rooms. I played there happily. But there
were     5    people in the hotels, so we often had to sleep in one room. And it was expensive,    6   .
      Sometimes,  we   7 in a small cabin in the mountains. I really loved it. The cabin was clean   8
quiet. We had two rooms, so I could get up late in the morning. But I always got up early   9 we
wanted to go swimming. There was a beautiful lake   10   the cabin. We also went fishing and
cooked food outside.

( )1. A great
( )2. A. by
( )3  A. years
( )4. A. were
( )5. A. lots of
( )6. A so
( )7. A worked
( )8. A. but
( )9. A. if
( )10.A. near

B. well
B. with
B. months
B. are
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B. studied
B. or
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B. on

C. really
C. of
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C. stayed
C. not
C. after
C. in

D. lazy
D. from
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D. was
D. much
D. then
D. clea
D. and
D. befo
D. unde

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