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在300米环形跑道,甲乙两人同时同地起跑,若同向跑2分30秒相遇,若背向跑半分相遇, 在300米的环形跑道上,甲、乙两人同时同地起跑.如果同向跑2分30秒相遇,如果背向跑则半分相遇.已知甲比乙跑得快,求两人每分跑的距离各是多少米? 在300米环形跑道上,甲乙两位同学同时同地起跑,如果同向跑,则2分30秒相遇,如果背向跑则半分钟相遇,已已知甲比乙跑的快,求两人的速度各是多少?（不用方程） 300米跑道,甲乙同时同地起跑,如同向跑,2分30秒相遇,如背向跑,半分钟相遇,甲乙速度各是多少 手机流量1MB流量等于多少M 内存卡1mb等于多少m1m=?mb 1m=?k 1mb=?k 512兆内存有多少M 1G内存有多少M ====== 1MB等于多少M? 1MB是多少兆的内存 和M是同一单位吗 1MB等于几M? the students have to stay in the classroom,______填什么?2、Would you please tell me if you would go to beijing by plane?/waht you will go to beijing for?二选一 3、I wonder how long he has been/gone there.二选一 4、Many world record were _ Students have to know how to study.They also have to know classroom science.Here are somethings the什么意思 _____ (number)of the students ____(stay)in the classroom They have to clea the classroom(对clea the classroom提问） they have to(clean the classroom对括号里提问 甲乙在周长600米的环形跑道赛跑,同向跑30分钟甲追上乙,背向跑4分钟相遇,求甲乙的速度 甲乙两人在一周长600米环形跑道上从同一起跑线赛跑同向跑30分甲追上乙,背向跑4小时相遇.求甲乙速度各多少 体育场环形跑道周长400米,甲乙二人同地背向跑1分钟相遇,如同向跑,甲20分钟追上乙, 甲、乙两人速度一定,在周长300米环形跑道上跑步.甲速每分13米,乙速每分12米,他们第5次相遇时离出发点有多远?急（好的加30分以上） How many students are there in the classroom?____.They are on the playgroundA No one B None C Nobody D Everyone how many students are there in the classroom?( ) They are all on the playgroundA no one B none C nobody 英语选择题 There are students playing on the playground now they are all studying in the classroomA many Bsome C any D no 加 解释 There are some students ( )the playground.what are they doing?There are some students ( )the playground.what are they doing?——Ther are playing a game.A.on the right ofB.in front ofC.in the center ofD. at the back of正确答案是C选项,为 there are ________students in the classroom.where are they?A.a lot of B.very few C.very a few D.only few 甲乙两人从AB两地他们的速度比是3：2相遇后甲速提高20%乙速提高30%甲到B地乙距A地14千米总路程多少米? 他们第一次相遇后,甲的速度提高20%,乙的速度提高30%,这样,当甲到达B地后,乙离A地还有7千米,求两地距甲、乙二人分别从A、B两地同时出发,相向而行,出发时他们的速度比是3：2,他们第一次相遇 甲乙从AB两地出发乙的速度是甲的2/3第一次相遇甲提速1/5乙提高3/10当甲到B时乙离A还有14千米问AB两地距离 甲乙分别从A.B出发,乙速度是甲三分之二,相遇后还行,甲到B乙到A后返回相遇距第一次20千米,两地相距? Would you like to go to the gym to watch the football match with us 怎么回答? Would you like to watch the football match wiht me after supper?No,I prefer ___at home to __ the footbaal match they would like to watch a football为啥like后面接to wath,不是like后面加动名词形式么? Would you like to ___ the football match?A.join B.take part in C.take part D.join in would you like to go to a football match?改为同义句回答：（）（）to a football match