问题 多项选择题

以下关于GSM说法中,错误的是()。

A.PCH、AGCH、RACH是GSM呼叫流程中常见的逻辑信道

B.当手机需要与网络发生联系时,必须要先建立无线链路和Abis接口的信令连接

C.GSM网络协议中,MM协议的功能有:鉴权和身份识别、位置更新、测量和功率控制、信道分配等

D.GPRS网络中,需要彻底更新的GSM模块为MS

答案

参考答案:B, C

单项选择题

Questions from 31 to 35 are based on the following passage: China’s trade volume surged in 2010. The development wasn’t only in quantity, but also in quality — namely structure diversification.The European Union, the United States and Japan remained China’s top 3 largest trading partners in 2010.But trade volumes between China and other emerging economies increased also. Bilateral trade volumes between China and other BRIC nations — Brazil, Russia and India — all jumped more than 40 percent. That made India China’s tenth largest trading partner.Huang Guohua, Statistics Department Director of General Administration of Customs said “Trade volume between China and emerging economies increased faster than that with the traditional market. It indicates that China’s foreign trade is diversifying, and showing less dependence on the traditional partners. It’s a good way to reduce risks.”Data also shows that foreign trade volumes developed dramatically in China’s middle and western areas last year. Although the southern province of Guangdong still topped others in the total volume of import and export.Huang Guohua said “The export volume of middle and western areas surged over 40 percent year on year in 2010. The speed was 10 percentage points higher than the country’s total. It indicates that industrial structure has improved in these areas.”The import and export volume of private enterprises surged faster than the country’s average in 2010, with 47 percent year on year growth. Experts say China’s foreign trade development reduced dependence on foreign-funded enterprises.2010 imports and exports reached a historical high with a p sign that the country’s trade sector has shrugged off the global economic recession.

According to the passage, which enterprises surged faster than the country’s in 2010()

A.state-owned enterprises

B.joint ventures

C.private enterprises

D.foreign-funded enterprises

判断题