受弯构件计算时,受压区应力图形用矩形代替曲线的原则是什么?
1.等效矩形应力图形的面积与理论图形(即二次抛物线加矩形图)的面积相等,即压应力的合力大小不变;
2.等效矩形应力图的形心位置与理论应力图形的总形心位置相同,即压应力的合力作用点不变。
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Humanbeingsaresuperiortoanimals_____theycanuselanguageasatooltocommunicate.
ReadingComprehension
Passage1
Languagesaremarvelouslycomplexandwonderfullycomplicatedorgansofculture.Theyembodythequickestandthemostefficientmeansofcommunicatingwithintheirrespectiveculture.Tolearnaforeignlanguageistolearnanotherculture.Inthewordsofapoetandphilosopher,“Asmanylanguagesasonespeaks,somanylivesonelives.”Acultureanditslanguagesareasinseparableasbrainandbody;whileoneisapartoftheother,neithercanfunctionwithouttheother.Inlearningaforeignlanguage,thebestbeginningiswiththenon-verballinguisticelementsofthelanguage,itsgestures,itsbodylanguage.EyecontactisextremelyimportantinEnglish.Directeyecontactleadstounderstanding,or,astheEnglishmaxim(格言)hasit,seeingeye-to-eye.Wecanneverseeeye-to-eyewithanativespeakerofEnglishuntilwehavelearnedtolookEnglishisspoken
3.Accordingtothispassage,gesturesare________.
A.non-verbalaswellasnon-linguistic
B.verbalandlinguistic
C.non-verbalbutneverthelesslinguistic
D.verbalbutneverthelessnon-linguistic
4.“Asmanylanguagesasonespeaks,somanylives”means________.
A.ifoneleansmanyforeignlanguages,onewillhaveabetterunderstandingofhisownlanguage
lifeisricherandmoreinterestingifoneknowsseverallanguages
nomatterhowmanylanguagesoneknows,onecanneverknowmorethanone’sownculture
ifapersonspeaksonlyonelanguage,hewillliveaveryhappylife
5.Oneofthefollowingwhichisnotsynonymouswiththeothersis_______.
A.signsB.gesturesC.maximsD.bodylanguage
Someconceptsmaybedifficulttograspchieflybecausetheymaybeunfamiliaror_____ideas,opinionswhichwealreadyhold.
汉译英:朋友之间,情趣相投、脾气对味则合、则交,反之,则离、则绝。朋友之间再熟悉、再亲密,也不能随便过头、不恭不敬,这样,默契和平衡将被打破,友好关系将不复存在。每个人都希望拥有自己的一片私密空间,朋友之间过于随便,就容易侵入这片禁区,从而引起冲突,造成隔阂。待友不敬,有时或许只是一件小事,却可能已埋下了破坏性的种子。维持朋友亲密关系的最好办法是往来有节,互不干涉。