已知集合A={﹣1,0,1,2},B={﹣2,1,2},则A∩B=( )
A:{1}
B:{2}
C:{1,2}
D:{﹣2,0,1,2}
Jack Chan makes________ movies. ()
Mr. Zhang is mad at the children who often copy others' homework.
计算:14-83+0.25
车架材料
碳纤维
车架材料体积/cm3
2500
车架质量/kg
4.5
整车质量/kg
10
单轮接触面积/cm2
4