一年级数学试卷写评语
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两地相距153千米甲乙两辆骑车同事从两地开出相向行使3小时候相遇已知甲车比乙车每小时快1千米求甲乙两车速快.60秒作玩
火车在进入隧道之前必须鸣笛,若火车速度为80km/h,声音在空气中传播的速度为340m/s,司机在鸣笛后2s时听到自隧道口处的山崖反射的回声,则鸣笛时火车到隧道口的距离是多少m?
He took my bag by m_____.
I was in such a hurry that I took my sister’s bag by mistake为什么不用by mistook?
甲、乙位同学从A地到B地,甲步行的速度为3km/h,乙步行的速度为5km/h,两人骑自行车的速度都是15km/h,现在甲先步行,乙先骑自行车,两人同时出发,走了一段路程后,乙放下车步行,甲走到乙放车处改
How many apples are there?是用There回答,还是用they回答.
how many apples are red?能这么问吗?how many red apples are there?这么说更顺些吧.
He always took both an English-Chinese and a Chinese-English dictionary along 40 his travelsA in B by C for D on ,选哪个,为什么,请详解,急
甲,乙两地相距700千米两辆汽车同时从甲乙两地相对开一辆汽车每小时行68.8千米另一辆车每小时行71.2千米两
甲乙两辆汽车从同一地点相背而行,甲车每小时行68千米,乙车每小时行72千米,甲车先行1小时候,乙车才开始出发.乙车出发2.5小时后,甲乙两车相距多少千米?
甲乙两车从同一个车站同时出发背向而行,甲车的速度比乙车的2倍少20km/h,经过2h后两车相距260km,问甲乙的速度各是多少?
甲乙两轮船航行于海上,甲船的位置在乙船北方125千米,以15km/h的速度向东行驶,乙船以20km/h的速度向北行,多久两船相距最近?答案是4个小时,相距75km
Sorry,I took your book__.A,by mistake B,by accident C,in this way
i'm sorry i took your umbrella / mistake.a;by; why?
1.I am sorry I took your coat( )mistake.2.I do not have a partner to practice English ( ).在( )内填适当的介词
I am sorry,I took your English book by m_____ yesterday afternoon
关于夏天的作文
sorry,i took your book () mistake-------never mindAinBwithCbyDof
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sorry,i took your umbrella by ()填mistake适当形式
I am____( true) sorry . took your umbrella by mistake.
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sorrym Mr.White,I took your umbrella by mistakeA that's right B it doesn't matter C you're welcomeD never think about it