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- 1镍和铬的焰色反应的颜色分别是什么?
- 2The boy likes（）meat very much.So he is very fat now eats eat eatting eating
- 3在本月中旬左右,我们将会有好运.We will ___ ____ ___ ___ the middle of this month.
- 4英语翻译
- 5判断如图所示电路中的反馈类型.
- 6if i were her还是if i were she
- 7已知x、y、z是三个非负整数，满足3x+2y+z=5，x+y-z=2，若s=2x+y-z，则s的最大值与最小值的和为 _ ．
- 8offical teacher什么意思
- 9已知曲线C的方程是x²+y²-2x+4y+m=0,m∈R.(1）若此曲线表示圆,求m的取值范围;
- 10英语翻译