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【单选题】
关于电容的说法中正确的是( )
A.
 由C=Q/U可知.电容器的电容与它的带电量、两板间电压有关.
B.
 电容器带电量多,说明它容纳电荷的本领大.
C.
C.由Q=CU可知,当U增大时.Q可以无限增大.
D.
 两个相互靠近彼此绝缘的人,虽然不带电,但它们之间有电容.
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【单选题】“人生若只如初见,何事秋风悲画扇”出自于( )
A.
秦观的《踏莎行》
B.
纳兰性德《木兰花令》
C.
吴伟业《圆圆曲》
D.
张若虚《春江花月夜》
【简答题】与1000H等值的十进制数是( ) xh15
【多选题】光波长转换技术(OTU)的主要功能()。
A.
进行波长转换
B.
提供标准、稳定的光源
C.
提供较大色散容纳值的光源
D.
作为再生器使用
【单选题】下列地形图上表示的要素中,属于地貌的是( )。
A.
森林
B.
冲沟
C.
界线
D.
道路
【单选题】光波长转换技术(OTU)的作用是
A.
进行波长转换,提供标准、稳定的光源,提供较大色散容纳值的光源,作为再生器使用
B.
对经过线路衰减后的小信号进行预放大
C.
对各相关部件的故障告警、故障定位
D.
在一个新波长上传送有关DWDM系统的网元管理和监控信息
【判断题】若一普通v带传动装置工作时有300 r/min和600 r/rain两种转速,若传递的功率不变,则该带传动应按600 r/min进行设计。
A.
正确
B.
错误
【单选题】Why does CareerSite’s agent offer each job hunter only three job options?
A.
To focus on better job matches.
B.
To attract more returning visits.
C.
To reserve space for more messages.
D.
To increase the rate of success.
【单选题】The chairman ______ that this year's prize winner is Dr. Hunter.
A.
announced
B.
declared
C.
stated
D.
pronounced
【单选题】If Hunter's artistic work were to return to its earlier political forum, assessments of it would be likely to contain which of the following?
A.
An evaluation that accords high status to her work
B.
Acknowledgement of her political acumen but dismissal of her subject matter as contentious
C.
Agreements with assessments made prior to the 1980's but acknowledgments of the evolution in her art work
D.
Placement of her among the foremost artists of the pre-1980's
E.
A reclassification of her work as psychoanalytical rather than political
【简答题】与1000H等值的十进制数是( )
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