remaining positive and learning there is more to life than money意思

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• remaining positive and learning there is more to life than money意思
• Time is always with us in our live.We can not see it.But we can feel it go by.Many people say,“ Time is money.Time is life.” But I think time is more important than money.And our life are consists of time.We take a lot of time to play every day.But we can use that time to do a lot of things like reading books,listening to English tapes,learning maths and so on.We can not waste time on sleeping all the time.We must value time as we value our lives.I ne
• remaining positive and learning there is more to life than money意思
• 递增数列1,3,4,9,10,12,13,……是由一些正整数组成,它们或是3的幂,或是若个不同的3的幂之和,求数列
• 在一个长方体蓄水池里放进一块长和宽都是5厘米的长方体铁块，如果把它全部放入水里，池里水面就上升9厘米，如果把水中的铁块露出8厘米，这时池里的水面就下降4厘米．问：这个铁块的