2021届高三物理二轮复习常考模型微专题复习-带电粒子在圆形边界磁场中的运动

2021届高三物理二轮复习常考模型微专题复习-带电粒子在圆形边界磁场中的运动，扫描并关注下面的二维码，获取相关答案！

12018年，我们过得很充实、走得很坚定。2018hasbeenafullyear，andweapproacheditwithsteadfastdetermination.2我时常牵挂着奋战在脱贫一线的同志们，280多万驻村干部、第一书记，工作很投入、很给力，一定要保重身体。Ourcomradesonthefrontlinesofthefightagainstpovertyareofteninmythoughts，includingover2.8millionofficialslivingandworkinginvillages，andthelocalvillageleaders.Theyaredevotedtotheirworkanddoanawesomejob，andIwishthemgoodhealth.3我始终惦记着困难群众。他们真诚朴实的面容至今浮现在我的脑海。新年之际，祝乡亲们的生活蒸蒸日上，越过越红火。Myheartgoesouttothepeoplelivinginhardship.Icanvividlyrecalltheirdown-to-earthsincerity.IwouldliketowishallofthemandtheirfellowvillagersaprosperousandthrivingNewYear.4一个流动的中国，充满了繁荣发展的活力。我们都在努力奔跑，我们都是追梦人。China，asacountryofpeopleonthemove，isenergeticallypursuingprosperity.Weareallrunningveryhard.Wearealldreamchasers.5我们改革的脚步不会停滞，开放的大门只会越开越大。Chinasreformswillneverstop，anditsdoorswillonlyopeneverwider.6人民是共和国的坚实根基，人民是我们的最大底气。Ourpeoplearethecountryssolidfoundationandourmainsourceofconfidencetogovern.7新征程上，不管乱云飞渡、风吹浪打，我们都要紧紧依靠人民。Andnow，lookingforward，despitethecomplexitiesanddifficultieswemayfaceontheroadahead，weshallalwayscloselyrelyonthepeopleandsticktoself-relianceandhardwork.8这个时候，快递小哥、环卫工人、出租车司机以及千千万万的劳动者，还在辛勤工作，我们要感谢这些美好生活的创造者、守护者。大家辛苦了。Evenaswespeak，therearedeliverymen，streetcleaners，taxidrivers，andcountlessotherswhoarehardatwork.Weshouldthanktheseworkerswhocontributetothecreationofourbeautifulsociety.Theirhardworkismuchappreciated.9无论国际风云如何变幻，中国维护国家主权和安全的信心和决心不会变，中国维护世界和平、促进共同发展的诚意和善意不会变。Nomatterwhatthesechangesbring，Chinawillremainresoluteandconfidentinitsdefenseofitsnationalsovereigntyandsecurity.AndChinassincerityandgoodwilltosafeguardwor" "