多数情况下,雷云中含有大量的( )极性电荷,会在大地感应出( )电荷, 雷电流为( )极性。
发布时间:2026-04-29
A.负正负
B.负负负
C.正正正
D.正负负
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69526' and id < 4504642 and id<>'4504642' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69526' and id > 4504642 and id<>'4504642' order by id asc limit 5
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