1.He ___ ___ ___ heavily.
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1.He ___ ___ ___ heavily.
他过去吸烟很厉害.
2.I ___ ___ ___ ___ him since he ___.
从他走后,我就没有收到他的来信.
3.一个正方体的体积扩大为原来的8倍,它的棱长变为原来的多少倍?扩大为原来的27呢?n倍呢?
4.要生产一种容积为50升的圆柱形热水器,使它的高等于底面直径的2倍,这种容器的底面直径应取多少分米?(结果保留小数点后一位.)
他过去吸烟很厉害.
2.I ___ ___ ___ ___ him since he ___.
从他走后,我就没有收到他的来信.
3.一个正方体的体积扩大为原来的8倍,它的棱长变为原来的多少倍?扩大为原来的27呢?n倍呢?
4.要生产一种容积为50升的圆柱形热水器,使它的高等于底面直径的2倍,这种容器的底面直径应取多少分米?(结果保留小数点后一位.)
1、used to smoke
2、haven't received letters from left
3、2倍 3倍 三次根号n
4、设半径r,高为2r
所以πr²*2r=50
解得r=三次根号(25/π)
直径是2
2、haven't received letters from left
3、2倍 3倍 三次根号n
4、设半径r,高为2r
所以πr²*2r=50
解得r=三次根号(25/π)
直径是2
It is___?___ heavily now.
%>___
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