A . 正确
B . 错误
[单选题]GSM的全称为()。A .通用分组无线业务B .数字移动通信C .无线应用协议D .全球移动通信
[判断题] GPRS的英文全称为General Packet Radio System。()A . 正确B . 错误
[判断题] 普惠制(GSP)全称为普遍优惠制度(Generalized System of Preference):指发达国家给予发展中国家的出口产品(制成品、半成品、某些初级产品)一种比正常关税更优惠的关税优惠制度。A . 正确B . 错误
[填空题] GSM-R系统中CIR的中文全称是()。
[填空题] BBS(Bulletin Board System)就是()。
[单选题]The author associates the issue of global warming with that of smoking because ________.[A] they both suffered from the government’s negligence[B] a lesson from the latter is applicable to the former[C] the outcome of the latter aggravates the former
[单选题]A. firewall is a(1)system designed to(2)an organization's network against threats.A.operatingB.programmingC.securityD.service
[单选题]()就是指在归属GSM-R网络外的其它GSM-R网络(拜访GSM-R网络)中使用移动业务。A .切换B .漫游C .重选D .换网
[填空题] GSM系统无线接口就是()接口,采用()接入方式。
[单选题]Portfolios located to the right of the market portfolio on the capital mark