And to find the bounds perhaps the easiest is to draw a picture of a region in u, v coordinates.
相对简单的、找出边界的办法,就是在u、v坐标系下画出积分区域。
For, they, being not experts, are not supposed to draw too much conclusions on scientific and technical progress from the liftoff of Shen Zhou V.
毕竟，除了行家，大概没有多少人能从神舟五号升空看出多少科技的道行来。
We draw conclusions as follows:1)Three rivers' water quality exceed V class , serious pollution ;
通过研究得出如下结论：1） “三河”现有水质均劣于V类，均属严重污染；
画一画你的家庭树！
画一画你的家庭树！
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