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【单选题】
模拟移动电话系统主要采用模拟和（）技术，属于第一代移动通信技术。模拟移动通信与数字移动通信相比保密性较差，极易被并机盗打；只能实现话音业务，无法提供丰富多彩的增值业务；网络覆盖范围小且漫游功能差；模拟手机体积大、重量沉、样式陈旧。A.
码分多址
B.
时分多址
C.
频分多址
D.
波分多址
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【单选题】Lincoln had very little free time ______ he could spend studying then.
A.
when
B.
in which
C.
at which
D.
which
【简答题】低压断路器的选用原则: 断路器的额定电压和额定( ) 应( )线路、设备的正常工作电压和工作电流。
【单选题】Had Lincoln lived, it ______ that his postwar policies ______ criticism upon him.
A.
would have been...brought
B.
would have been...would bring
C.
might well be...would have brought
D.
might well be...brought
【单选题】Let us ask what were the preparation and training Abraham Lincoln had for oratory whether political or forensic. Born in rude and abject poverty, he never had any education, except what he gave himsel...
A.
was illiterate
B.
was never educated
C.
was never provided with any regular education
D.
behaved rudely when he was young
【简答题】Speaker 3:Lincoln had the ability to _____________ in concert,
【单选题】Let us ask what were the preparation and training Abraham Lincoln had for oratory, whether political or forensic. Born in rude and abject poverty, he never had any education, except what he gave himse...
A.
was illiterate
B.
was never educated
C.
was educated very late
D.
behaved rudely when he was young
【简答题】Speaker 4:Lincoln had the art and skill of ________________,
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