【判断题】国际电联发布的3G技术标准主要包括WCDMA、CDMA2000、TD-SCDMA及WiMax。
【判断题】3G标准包括中国联通使用WCDMA(宽带码分多址)、中国移动使用TD-SCDMA(时分同步码分多址)、中国电信使用CDMA2000。
【判断题】3G 标准包括: WCDMA 、 TD-SCDMA 、 CDMA2000 和 WiMAX ( IEEE802.16e )。中国提出的标准是 TD-SCDMA 。实际部署 3G 网络时,中国移动的 3G 网络采用 TD-SCDMA ,中国联通采用 W-CDMA ,中国电信采用 CDMA2000 。
【简答题】According to Pearce, why do most of the agers enjoy the work? A) Most kids want to learn how to repair bikes. B) agers don’t have enough money to buy cars. C) Youngsters care more about bikes ...
【简答题】阅读理解。 One of the most difficult problems a young person faces is deciding what to do. Some people, however, from the time they are six years old 'know' that they want to be doctors or teachers or fire...
【单选题】— Why do children ________ their faces when they play trick or treat? — Because they don't want people to know who they are. [ ]
【简答题】以下有关基督教的说法不正确的是_____。
【简答题】Why do most beginners find it difficult to stand up on a surfboard?