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有电时(220v)给电容充电、并给用电器供电（一分钟之内）,停电后用电容给用电器供电(220v).(供瞬间电流即可） 电感性、纯电容性负载分别指哪一类用电器? 手机支付宝密码建盘只有数字没有英文怎么回事 电容 供电如何做到 有电时(220v)给电容和用电器供电一分钟之内后自动停电,断电时电容能自动给用电器供瞬间电（220v) 电容器在供电系统中的作用请问谁知道 火线与零线 或零线与地线之间经常会连接有高压电容之类的电容器,他们的作用是什么,不应该是滤波了吧,如果是保护作用 具体怎么保护的,第一个问题 寻找有关励志的古代诗句请标明出处及作者, Mr Green is my English teacher.He t______us English well. What is your p___of going there with your brother? We have got some vegettables in the fridge.(改为一般疑问句 ) 圆规画圆,打一地名? 用圆规画圆(打一省级行政中心） what's going on...中文是什么意思? what's going on with 请再举几个这个句型的用法, I really like th movie.(同义句) I ____ ____ the movie. 建党九十周年工作汇报,建党90周年总结汇报 ,建党九十周年活动总结,建党九十周年活动个人总结建党九十周年座谈会发言摘要 when he (),he really look like a snowballA.run B.is running C.running D.is run he is my english teacher改错 It is accepted that Plays a significant part for both and what’s more ,a lot of attention is much safer 与 more safer有什么区别? There is nothing ____ in the bag.A.other B.more C.else D.both B and C 英语演讲 一分钟汉语：今天我们在学校打扫卫生.有的同学在扫地；有的同学在拖地；有的同学在浇花；还有同学在擦黑板.我呢?在排桌子.我们的老师也没闲着,她在指挥我们干活呢!急麻烦各 importers and exporters association是什么意思 she _(like )baseball and volleyball. I like playing volleyball.改为否定句 西班牙语¿Se está bañando alguien en el mar?要怎么翻译啊 负荆请罪>读后感要有写发生在我们身边宽宏大量的事情,知错就改的事情要有发生在我们身边的宽宏大量，知错就改的事情 负荆请罪的读后感 负荆请罪有感~急用 谁有负荆请罪的读后感,有的请发给我,hoho,T some of them had（worries problems habits )with alcohol or drug while others ONLY had luck Some of them agreed with him.Some of them ______.A.aren't B.didn't C.weren't D.don't 热水瓶的水过夜能喝吗