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- 1He tells of the importance of making good decisions.
- 2不管少了谁,地球都在转!用英语怎么说
- 3两地相距360Km,甲、乙两辆汽车间同时从两地相对开出,3小时相遇,相遇时甲、乙两车所行的路程比是7比五,甲、乙两车每小时各行多少千米?
- 4氧化铁和稀硫酸反应的现象是什么啊?
- 5改错1、Bob is much more carefully now than he was two years ago
- 6计算:2/1*3+2/3*5+2/5*7+2/99*101
- 7地面静止的飞机受空气浮力的大小跟-----和-------有关?
- 8You are late again.What's your e_____ for being late this time?
- 9某碳酸氢铵(NH4HCO3)样品经测定含氮16%(杂质不含氮元素),求样品的纯度
- 10已知函数f(x)的定义域是x不等于0的一切实数,对于定义域内的任意x1 x2都有f(x1.x2)=f(x1)+f(x2),且当x>1