图同上题，已知Iop6=5.3A，Iop2=5.3A，Iop6=7A，Iop6=3A，则需要安装方向元件的是（ ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69493' and id < 4501537 and id<>'4501537' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69493' and id > 4501537 and id<>'4501537' order by id asc limit 5