表示超声波通过不同物质速率的术语是（）。
A、频率B
暂无解析
Whatisagenerallyacknowledgedasthemostpowerfuladvertisingmediumandreachesabroadspectrumofconsumers.（）
Therearemany___todosofortheparticipants.
Hisparentswouldn'tlethimmarryanyone____familywaspoor.
Everyyear,about10millionofthe150millionworkersintheEuropeanCommunityareaffectedbyincidents,”accidents”ordiseasesatwork.
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
