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- 1怎么回答?Do you think you lead a healthy lifestyle?
- 2一物体做平抛运动，抛出后1s末的速度方向与水平方向间的夹角为45°，求2s末物体的速度大小．（g=10m/s2）
- 3It's cold today.Keep the windows and doors （）.
- 4x的平方-20xy+36y的平方 因式分解
- 5口技多处描写听众的反应表达了什么意思有什么作用,
- 6【英语问题】whose shirt is that?可不可以换成whose is that shirt?两者区别在哪里
- 7方程组{2x+3y=5,3x-y=2的解为__
- 8填空：we have very nice food at school,we eat w_ every day.
- 9Do you think a good dictionary is h__ to us to learn English well
- 10将边长八厘米的正方形纸片ABCD折叠,使点D落在BC边中点e处,点A落点F处,折痕为MN,求线段CN长