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- 1how do we save water 写出答句
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- 3Science fiction is often about things we believe may be possible in the future.请教此句是否正确?
- 4If you finish _____(do) your honework,you can play football.
- 5N行列式怎么简单求X阶的系数
- 6若复数|w|=1,Z=x+yi(x,y属于R),且3w的共轭复数-Z=i,求复数Z在复平面上对应点的轨迹方程.
- 7在RT三角形ABC中
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- 10以My School day为题写一篇英语短文,70词左右!