W网优试题检索基础.docVIP

试题检索 制表日期:2007-10-29 序号,试题内容,试题选项,试题答案,试题类别,出题人,版本,试题难度,考点关键字,参考分值,录入时间,审核状态,试题类型, 1,Common antenna polarizaiton modes are:,1、horizontal polarization 2、vertical polarization 3、Circle polarization 4、Ellipse polarization ,1 2,认证题库（英文） 售后技术认证(英文) WCDMA-RNS THE BASIS OF 3G,王文琼108009,2,基础,,2,2007-10-12 0:00:00,审核通过,多选, 2,As an important component of the mobile communications system, the antenna is,1、an energy conversion equipment 2、a direction conversion equipment 3、a signal transceiving equipment 4、influences system performance ,1 2 3 4,认证题库（英文） 售后技术认证(英文) WCDMA-RNS THE BASIS OF 3G,王文琼108009,2,基础,,2,2007-10-12 0:00:00,审核通过,多选, 3,The antenna gain is stated in,1、dBd 2、dBi 3、dBm 4、dBμ ,1 2,认证题库（英文） 售后技术认证(英文) WCDMA-RNS THE BASIS OF 3G,王文琼108009,2,基础,,2,2007-10-12 0:00:00,审核通过,多选, 4,The antenna downtilt value is the sum of _____ and electric downtilt.,1、Mechanical downtilt 2、Pole curvature 3、vertical lobe 4、horizontal lobe ,1 2,认证题库（英文） 售后技术认证(英文) WCDMA-RNS THE BASIS OF 3G,王文琼108009,2,基础,,2,2007-10-12 0:00:00,审核通过,多选, 5,The inter-frequency handover in WCDMA is always hard handover, and the intra-frequency handover is always soft handover. ,,0,认证题库（英文） 售后技术认证(英文) WCDMA-RNS THE BASIS OF 3G,褚叶春200605,1,基础,,1,2007-5-29 0:00:00,审核通过,判断, 6,Of the ZTE base station engineering material configuration,the －48VDC power cable is of the colornbsp; 『____』and cross area 25 mm2;the －48VGNDDC power cable is of the colornbsp; 『____』nbsp;and cross area 25mm2;the protective grounding cable is of the color yellow-green and cross area 35mm2.,,blue black,认证题库（英文） 售后技术认证(英文) WCDMA-RNS NODEB COMMISSIONING,王俊刚130539,1,基础,,2,2007-5-25 0:00:00,审核通过,填空, 7,The AC power cable, DC power cable， grounding and signaling cable are arranged separately. The distance among them is ( ).,1、50mm—150mm 2、100mm—200mm 3、150mm—250mm 4、200mm—300mm ,2,认证题库（英文） 售后技术认证(英文) WCDMA-RNS ENGINEERING CRITERION,褚叶春200605,1,基础,,1,2007-5-25 0:00:00,审核通过,单选, 8,The HSDPA provides a new transmission channel, that is, high-speed dow