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问题 单项选择题

GPON的T-CONT分为5种业务类型，不同类型的T-CONT具有不同的带宽分配方式，可以满足不同业务流对时延、抖动、丢包率等不同的QoS要求T-CONT类型3的特点是（）

A、保证带宽（AssureD.分配，适合对抖动要求不高的固定带宽业务

B、固定带宽（FixeD.分配，适合对时延敏感的业务

C、非保证带宽（Non-AssureD.分配，适合于有服务保证要求而又突发流量较大的业务

D、尽力而为（BestEffort），无带宽保证，适合于时延和抖动要求不高的业务

答案

参考答案：C

阅读理解

阅读理解。

                                                                        A letter

Dear Li Ting,

     My new school is very nice. There are 50 students in my class. Two girls are America. But they can speak

Chinese very well. Their fathers work in our city. Billy is an English boy. He comes from London. He can speak little Chinese. They like China very much. They also like our Chinese food. They are very friendly. How many

Chinese students are there in our class? How many Young Pioneers are there in our class? Can you guess?

Please write soon!

                                                                                                                              Love from

                                                                                                                                Liu Tan

1. Who writes the letter?

____________________________________________

2. The two girls are from __________________ .

3. Do they like Chinese food?

_________________________________________________

4. 将划线句子翻译成汉语.

_________________________________________________

5. How many Chinese students are there in the class?

_______________________________

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单项选择题 A3型题

一汽车被火车撞出20多米，发生严重事故，现场汽车内乘客伤情各异，有的大喊大叫，有的呻吟，有的不响不动。

在以下现场处理方法中不对的是（）

A.抢救人员奔向大喊大叫者

B.对伤口进行初步检查

C.有伤口出血应初步止血

D.伤口初步包扎

E.有内脏脱出的暂不还纳
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