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【简答题】
已知电路如图所示，R 1 =4kΩ，R 2 =8kΩ，U S =12V，C=1μF，电路已达稳态。
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皮皮学刷刷变学霸
举一反三
【单选题】I like the job but I don’t like the management _____.
A.
a bit
B.
bit
C.
a little
D.
little
【单选题】It can be inferred from the passage that by the eleventh century the Byzantine militaryforces
A.
had eliminated the Bulgarian army.
B.
were comparable in size to the army of Rome under Augustus.
C.
were strong enough to withstand the Abbasid Caliphate's military forces.
D.
had achieved control of Byzantine governmental structures
【单选题】龙胆与坚龙胆根横切面主要区别点为
A.
龙胆有表皮，坚龙胆无
B.
龙胆外皮层明显，坚龙胆不明显
C.
龙胆内皮层明显，坚龙胆不明显
D.
龙胆内皮层为一个母细胞分隔成数个子细胞，坚龙胆无
E.
龙胆中间髓部明显，坚龙胆无髓部
【单选题】The influence demonstrated by the houses during the eighteenth century was mainly from imported architectural manuals. Where were these manuals imported from?
A.
England.
B.
Maryland.
C.
Pennsylvania.
D.
Charleston.
【简答题】中药材龙胆的植物来源有 ( ) A. 龙胆 B. 三花龙胆 C. 条叶龙胆 D. 坚龙胆 E. 糙毛龙胆A.B.C.D.E. E
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