已知圆锥底面半径为4,高为3,则该圆锥的表面积为( )
邻里之间有了矛盾,我们应该( )。
John can't go to the party on Thursday because he to go out on school nights.
6×7____41 4×7____30 7×7____49
7+1____7×1 7×3____20 7×4____4×7