下图所示电路中,电源电压的有效值U=1V保持不变,但改变电源频率使电阻两端所接电压表的读数也为1V,则此时角频率
( )
。
发布时间:2026-04-10
A.500
B.1000
C.1
D.10
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69505' and id < 4502654 and id<>'4502654' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69505' and id > 4502654 and id<>'4502654' order by id asc limit 5
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