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- 1she is a beautiful girl.分析一下句子的成分?
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- 3一项工程甲队单独要做6天完成,乙队单独做要8天完成,如果两队合作,每天可以完成这项工程的几分之几?
- 4英语自我介绍八十个词,拜托翻译一下
- 5有一处错误,请指出并改正1.l think there are too much rules in our school.
- 6如图三棱柱ABC-A1B1C1中,CA=CB,AB=AA1,∠BAA1=60°, 证明:AB⊥A1C.
- 7已知抛物线y=-x^2+kx+7-2k与x轴交于A(x1,0)、B(x2,0)两点,且线段AB的长为4,又图像与y轴负半轴交于点C
- 8二次函数f(x)的图像与x轴交于(-2,0),(4,0)两点,且顶点为(1,-9/2),求函数f(x)的解析式
- 9求由方程xy=ex+y所确定的隐函数的导数dy/dx.
- 10Li Ping usually -------(go) to school by bike,But his bike-----(be)broken.So today he-----(be)