6.2平面向量的运算课堂检测2020-2021学年高一下学期数学人教A版必修第二册第6章平面向量及其应用

6.2平面向量的运算课堂检测2020-2021学年高一下学期数学人教A版必修第二册第6章平面向量及其应用，扫描并关注下面的二维码，获取相关答案！

二、程朱理从应试层面来说，平时做题，一定要注重自己总结母题，把题目模型化、公式化，也即教师行话里SHEWASN’Tathome.Thefrontdoorofthebuildingstoodajar，soIwentupthestairs，rangthebell，andwaited.ThenIrangagain.Insidetheapartmentthedoorswereopen，asIcouldseethroughtheglassofthefrontdoor，andIcouldalsomakeoutthemirror，thewardrobe，andtheclockinthehall.Icouldhearitticking.Isatdownonthestairsandwaited.Iwasn’trelieved，thewayyoucansometimesbewhenyoufeelfunnyaboutacertaindecisionandafraidoftheconsequencesandthenrelievedthatyou’vemanagedtocarryouttheformerwithoutincurringthelatter.NorwasIdisappointed.Iwasdeterminedtoseeherandtowaituntilshecame.Theclockinthehallstruckthequarterhour，thenthehalfhour，thenthehour.Itriedtofollowitssofttickingandtocounttheninehundredsecondsbetweenonestrokeandthenext，butIkeptlosingtrack.Theyardbuzzedwiththesoundofthecarpenter’ssaws，thebuildingechoedwithvoicesormusicfromoneoftheapartments，andadooropenedandclosed.ThenIheardslow，heavy，regularfootstepscomingupthestairs.Ihopedthatwhoeverhewas，helivedonthesecondfloor.Ifhesawme—howwouldIexplainwhatIwasdoingthere？Butthefootstepsdidn’tstopatthesecondfloor.Theykeptcoming.Istoodup.ItwasFrauSchmitz.Inonehandshewascarryingacoalscuttle，intheotheraboxofbriquets.Shewaswearingauniformjacketandskirt，andIrealizedthatshewasastreetcarconductor.Shedidn’tnoticemeuntilshereachedthelanding—shedidn’tlookannoyed，orsurprised，ormocking—noneofthethingsIhadfeared.Shelookedtired.Whensheputdownthecokeandwashuntinginherjacketpocketforthekey，coinsfelloutontothefloor.Ipickedthemupandgavethemtoher.Therearetwomorescuttlesdowninthec"的培养学生的化学意识。各科均适用，包括英语、语代，均有规律可循。就得（2）过程：第一步：加热至90～95℃DNA解链；第二步：冷却到55～60℃，引物结合到互补DNA链；第三步：加热至70～75℃，热稳定DNA聚合酶从引物起始互补链的合成。原来听一位老教师说，高中数学其实就是不到二十个母题，把这若干个母题掌握了，剩下的只是灵活应对它们的变式与综合。学：