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- 1一个长方形,长比宽多5分米,宽是长的九分之四,则这个长方体的面积是多少?
- 2MA=2kg的木板在光滑的水平面上以2m每秒的速度向右运动,t=0时,mb=1kg的铁块以va=1米每秒的速度水平向左滑上木板.b于a之间的动摩擦因素=0.1,若b刚好没有滑出木板,则板的长度至少为多少?整个过程产生的热量是多少?
- 3i'd like to go there改为一般疑问句
- 4曲折 弯曲 曲线 这三个曲的读音分别是什么?
- 5计算:【(x的n+1次方)的四次方*x²】/【(x的n+2次方)的³/(x²)的n次方
- 6She closed her eyes and didn't notice there was a man looking at her carefully .
- 770公里等于多少米?
- 8Sakura(洁白的爱) 这个英文名怎么读?
- 9我的中学老师作文600字
- 10If the horse won today,it _______ 30 races in five years.A.would have won B.must have won