P(all N points in some arc of length x)=N⋅xN−1P(\text{all } N \text{ points in some arc of length } x) = N \cdot x^{N-1}P(all N points in some arc of length x)=N⋅xN−1
Technology of Business
，更多细节参见体育直播
Sizes: 13- and 15-inch models
● 하늘길에 붙은 ‘전쟁 비용’