阿尔卡特的小区分层分级的组合是由五个参数组合决定。其中Cell_band_type定义小区的频带类型,它是根据()将小区分为GSM和DCS。
参考答案:BCCH频点
根据短文回答下列问题。
Hi, this is Liu Yun. I'm going to have a busy weekend! On Saturday, I'm going to the bookstore by subway.
I'm going to buy a new CD and some story-books. Then, I'm going to go home and read the new books. On
Sunday, I'm going to the supermarket with my mother. We're going there after lunch. Then, in the evening, I'm
going to visit my aunt. We are going to watch TV together. That will be fun!
1. How is Liu Yun going to the bookstore?
2. What is she going to buy?
3. Where is she going after lunch on Sunday?
4. When is she going to visit her aunt?
5. Is Liu Yun going to have dinner with her aunt?
观察下面的几个算式:
1+2+1=4=2×2;
1+2+3+2+1=9=3×3;
1+2+3+4+3+2=16=4×4;
1+2+3+4+5+4+3+2+1=25=5×5。
根据上面几道题的规律,计算下面的题:
(1)1+2+3+...+9+...+3+2+1;
(2)1+2+3+...+100+...+3+2+1;
(3)1+2+3+...+n+...+3+2+1。