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- 1介电常数的定义是什么?
- 2一个斤一个页合起来什么字
- 3阅读材料解方程:解X的四次方减7X的平方加10等于0解:设Y=X的平方.原方程可变成Y平方-7Y+10等于0解得Y1等于5 Y2等于2 则有x平方=5和X平方=2所以X1等于根号5 x2=﹣根号5 x3=根号2 x4=﹣根号2 解[x+2]
- 4if you have some problems in your dorms,how do you solve it?
- 5英语翻译: I wasn’t aware I was falling for him until I was able to see him again.
- 6用英语翻译:儿童节是六月的第一天,孩子们都喜欢这一天.
- 7if you have a dream you can do it中文意思
- 8A man is not old as long as he is seeking something.A man is not old until regrets take the place of dreams
- 9she is good at French .she has a large v_____
- 10数学求函数的导数:y=3x^2 - 2/x^2 + 8