Иран назвал путь к прекращению войны14:05
P(all in some semicircle)=∑i=1NP(Ei)=N⋅12N−1=N2N−1P(\text{all in some semicircle}) = \sum_{i=1}^{N} P(E_i) = N \cdot \frac{1}{2^{N-1}} = \frac{N}{2^{N-1}}P(all in some semicircle)=∑i=1NP(Ei)=N⋅2N−11=2N−1N
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Earlier in the night, Afghanistan's Taliban government said it had launched a major ground operation against Pakistani military positions near the border, claiming to have captured several posts, and also claiming to have captured and killed Pakistani soldiers.，推荐阅读爱思助手下载最新版本获取更多信息