问题 多项选择题

良好的网络结构是良好频率计划的基础。不管采用何种方式进行频率规划,一般需要遵循一些基本原则()

A、同一基站内不允许存在同频频点

B、同一小区内,BCCH和TCH的频率间隔最好在400K以上

C、非1*3复用方式下,直接邻近的基站避免同频;即使其天线主瓣方向不同,旁瓣及背瓣的影响也会因天线及环境的原因而难以预测

D、考虑到天线挂高和传播环境的复杂性,距离较近的基站应尽量避免同频相对或斜对

E、通常情况下,13复用应保证跳频频点是参与跳频载频数的二倍以上

F、重点关注同频复用,避免在邻近区域存在同BCCH同BSIC的情况

答案

参考答案:A, B, C, D, E, F

阅读理解

OUR BUSES CAN MAKE YOUR HOLIDAYS  

East Bus -– maybe the best choice on your visit to the famous places of interest in Beijing.

Sit back, relax and see all there is to see, with no need to worry about driving, finding a parking place or leaving your car with no one to watch it.

We have lots of buses taking you to visit Tan’anmen Square, the Fofbidden City, the Summer Palace, the Temple of Heaven Park, the Olympic Center and the Great Wall. The whole tour will take you there three days.

Chinese & English speaking guides.

Booking by photo four days advance(预先).

Tour price: ¥580.00 per person( half price for children under 1.2m tall), including the ticket price,breakfast and lunch.

For more information, please phone Yong’an Tourism Company at 010-23368688/23368689.

Add: 356 Chaoyang Road, Beijing.

Open 7 days a week.8:00-16:00

小题1:When they visit the places of interes on an East Bus, the visitor______.

A.need to watch their cars

B.have to worry about the driving

C.have to find places to pasrk their car

D.can sit back and relax themslves小题2:From the advertisement, we can see that East Bus is a kind of_________.

A.tourist bus

B.village bus

C.airport bus

D.school bus小题3:________ on ab East Bus can speak two languages.

A.The guide

B.The driver

C.The visitors

D.The children小题4:Children under 1.2m tall need to pay ____ for the trip.

A.230 yuan

B.290 yuan

C.320 yuan

D.460 yuan小题5:which of the following is NOT true?

A.The tour price includes six meals

B.Visitors can see six places within three days.

C.Visitors must go to the company to book the tickets.

D.The office hour of the company is eight hours a day.

单项选择题