[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ftxF50DoIoGckvzPQSpiwSe-i6jBVZeAA_hvdBH9xFAE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2024-10-21 17:24:51",162532930,[8,9,10,11],"48\u002F100V","220\u002F380V","110\u002F220V","120\u002F240V",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},3,"cfbbdac30da3333ae073910c21964f4e","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8f6d1861c2d7225ca42808692d75026e.jpg","专业英语（智能化）","work_38012001","电力系统--课后习题","Residential and commercial customers are supplied by the secondary distribution feeders at ( ) in China",[21,26,35],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],162532931,[30,31,32,33],"step-down transformers","parallel reactors","step-up transformers","series capacitors","The generator voltages are usually stepped up to the transmission voltage level by ( )",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],162532932,[39,40,41,42],"prime movers, asynchronous generators","prime movers, synchronous generators","prime movers, prime movers","synchronous generators, prime movers","In power plant,() convert the primary energy to mechanical energy, and ()convert mechanical energy to electric energy"]