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- 13平方减2立方等于多少?
- 2she goes to the school r () room every firday afternoon.There are all k() of books
- 3已知方程（2006x）^2-2007*2005x-1=0的较大的根为a,方程x^2+2006x-2007=0的较小的根为b,
- 412.It was in this very lab was in the charge of Professor Smith they did the experiment.A.where;that B.which;that C.whic
- 5求一篇英语作文100字
- 6食堂运来大米350千克,是运来面粉的10分之7,运来的大米和面粉共重多少千克?
- 7已知a，b，c为实数，且多项式x3+ax2+bx+c能够被x2+3x-4整除． （1）求4a+c的值； （2）求2a-2b-c的值．
- 8电阻30兆符号如何表示
- 9在利用量筒和水测量不规则固体的体积时,需要先在量筒内注入适量的水,对于适量的要求是哪两点?
- 10若a、b为正实数,比较根号(a2/b)+根号(b2/a)与根号a+根号b的大小