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- 2建筑设计中“坡度”是怎么计算的?
- 3若a+5是无理数,则a是无理数,
- 41/xy=3是不是二元一次方程
- 5Believe me one day I will give you to the white
- 6“pH值”可以写成“PH值”吗?(小写的p能否写成大写的P)
- 7用示波器观察波形时,要使波形大小适当且在荧光屏中间,应调节哪些旋钮
- 8首字母已给 If you don't keep yourself warm enough,winter can be a time of illness.D___ the winter
- 9She ( ) phone me on my birthday.
- 10一个光盘,内圆半径是2cm,外圆半径是3cm,圆环面积是_.