首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
如图12-Z-11所示是列车上常用的手推车，车内货物均匀摆放．车前行时，需经过障碍物．当车的前轮遇到障碍物A时，售货员向下按扶把，这时手推车可以视为杠杆，若手推车和货物总重为200N，动力臂和阻力臂...
查看本题答案
包含此试题的试卷
教案备课库《自我综合评价（六）》真题及答案
点击查看
你可能感兴趣的试题
列车上出售的食品常常放在如图4所示的小推车上若货物均匀摆在车内当前轮遇到障碍物A.时售货员向下按扶把
列车上出售的食品常常放在如图所示的小推车上若货物均匀摆在车内当前轮遇到障碍物A.时售货员向下按扶把这
列车上出售的食品常常放在如图所示的小推车上若货物均匀摆在车内当前轮遇到障碍物时售货员向下按扶把这时
列车上有出售食品的手推车如图若货物在车内摆放均匀当后轮遇到障碍物A时售货员向上提扶把这时支点是写出
如图所示是列车上常用的手推车车内货物均匀摆放.车前行时需经过障碍物.当车的前轮遇到障碍物A.时售货员
如图所示是列车上常用的手推车车内货物均匀摆放.车前行时需经过障碍物.当车的前轮遇到障碍物A.时售货员
如图是列车上出售食品的手推车若货物均匀摆放在车内当前轮遇到障碍物时售货员向下按扶把这时手推车可以视
如图所示是列车上常用的手推车车内货物均匀摆放．车前行时需经过障碍物．当车的前轮遇到障碍物A时售货员
列车上有出售食品的手推车如图所示．若货物在车内摆放均匀当前轮遇到障碍物时售货员向下按扶把这时手推车可
如图所示是列车上常用的手推车车内货物均匀摆放.车前行时需经过障碍物.当车的前轮遇到障碍物A.时售货员
如图所示是列车上常用的手推车车内货物均匀摆放．车前行时需经过障碍物．当车的前轮遇到障碍物A时售货员
如图8所示是列车上常用的手推车车内货物均匀摆放．车前行时需经过障碍物．当车的前轮遇到障碍物A时售货员
列车上有出售食品的手推车如下图所示若货物均匀摆在车内当后轮遇到障碍物A.时售货员会向上提扶把请在图中
列车上有出售食品的手推车如图6所示若货物在车内摆放均匀当前轮遇到障碍物A.时售货员向下按扶把这时手推
如图所示是列车上常用的手推车车内货物均匀摆放车前行时需经过障碍物当车的前轮遇到障碍物A时售货员向下按
如图11所示是列车上常用的手推车车内货物均匀摆放.车前行时需经过障碍物.当车的前轮遇到障碍物A.时售
列车上出售的食品常常放在如图7所示的小推车上若货物均匀摆在车内当前轮遇到障碍物时售货员向下按扶把这时
如图所示是列车上常用的手推车车内货物均匀摆放．车前行时需经过障碍物．当车的前轮遇到障碍物A时售货员
如图所示是列车上常用的手推车车内货物均匀摆放．车前行时需经过障碍物．当车的前轮遇到障碍物A时售货员
列车上有出售食品的手推车如下图所示若货物均匀摆在车内当后轮遇到障碍物A.时售货员会向上提扶把请在图中
热门试题
更多
VickylikesthebooksheborrowedfromJim. A.who B.that C.whom D.whose
Jim'sataxidriver hereallywantstobeadoctor.A.or B.and C.so D.but
—Youngkidsshouldn'tgoswimmingalone. —.It'stoodangerous. A.You'rewelcome B.Itdoesn'tmatter C.Iagreewithyou D.Idon'tthinkso
—Whatdoyouwanttofortheschoolparty?—Whataboutaneveningdress?
ManykindsofareonshowinChangchunParkeveryyear.flower
Iarguedmyclassmatesyesterday.Theymademuchnoiseintheclassroom.
—Iamveryworriedabouttomorrow'sEnglishtest.ImafraidIcan'tpassthistime. —!I'msureyou'llmakeit. A.Ofcourse B.Don'tmentionit C.That'sright D.Takeiteasy
Excuseme.Couldyoutellmethewaytotheoffice?Iwanttomailthisletter.
Therewillbemanykindsofrobotinthefuture.
Youareoldenoughtomakedecisionsby.A.himself B.herself C. yourself D.myself
—Didyourfathertellyou?—No.Maybehetoldmymother.A.whydidhegotoBeijing B.howhegoestoShanghaiC.whenhewouldtraveltoNewYork D.wherehehasspenthisholiday
Kalewantstohavelongcurlylikehermother's.
GarthisregardedasasuccessmusicianinAmericanhistory.
AstimeflyIwillgraduatefrommiddleschoolsoon.
—Whatabeautifulkeyring!isit?—Only5yuan.A.Howold B.Howfar C.Howlong D.Howmuch
—Wouldyouliketogoforvacation? —Yes.I'dloveto.Iliketheplacewhereitispeacefulandbeautiful. A.somewheretouristy B.somewherequiet C.anywheretouristy D.anywherequiet
Chinesebymoreandmorepeopleintheworldnow. A.speak B.spoke C.isspoken D.wasspoken
—Willyoupleasetellmethestoryonceagain?It'ssointeresting. —With.
Weallknowthatplasticbagsweuseitwillbefortheenvironment. A.theless;thebetter B.theless;theworse C.thefewer;thebetter D.thefewer;thebest
Jackwillhaveamathtestthisafternoon.Heneedsa. A.hat B.ruler C.radio D.camera
—I'msohungry.Whenwillmychickensoupbe? —Sorrysir.Itwillbereadyinaminute. A.sold B.served C.eaten D.bought
Schoolisover.Somestudentsarebusy thefloor sweep.
Mountainclimbingisoneofthemostsportssoyouneedtotakecare.
—Iwenttoyourhouseyesterdaybutnobodywasin.—Oh.Ithemovie12YearsaSlavewithmyfriends.A.amwatching B.waswatching C.watched D.hadwatched
Peterlovesplayingthepiano.Hisfuturedreamistobeafamous.
Marydecidedtotryoutforavolunteerafter-schoolreadprogram.
Thereisn'tairportnearmyhometown.nearestoneisabouttwohundred kilometersaway.A.a;The B.an;The C.the;A D.the;An
youhavetrieditonyoucan'timaginehowprettythenewskirtis. A.Because B.Although C.Unless D.When
TheGreensliveonthe floorinthistallbuilding.six
Abalanceddietcanhelpuskeep.health
热门题库
更多
教案备课库
教案备课库
教案备课库
高一上学期物理
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
湘公网安备 43130202000226号