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- 1小明和小芳各自从家里出发到学校,小明走的路程比小芳多15,小芳用的时间比小明多18,则小明和小芳的速度比是( ) A.5:8 B.8:5 C.27:20 D.16:15
- 2已知a,b满足√4a-b+1+(2a-4b-3)2=0,求2a√(a分之b)²÷√(-b分之一)的值
- 3Tthe card will make me remember your kindness Tthe card will __ me __ remember your kindness
- 4有17个自然数,它们的平均值精确到小数点后一位数是21.3,那么精确到小数点后三位数是多少?
- 5已知5根号2-X+3根号X-2=Y+1,求根号X-6Y的值
- 6请帮忙解答几个高中英语选择题,谢谢!
- 7八点张王两人从AB两地出发张的速度比王快2km十点两人相聚36km十二点两人又相聚36km求AB的距离
- 8Girl,I will use my life to prove my love for
- 9Every river that you try to cross
- 10There are thirty-four students in our class.Tow are boys,_____students are girls