一卡通充值 一卡通购买 我的网易支付 网易智造 网易跨境支付 邮箱 where s0 is The existing inventory selling price, T is the perfect time to maturity, r could be the consistently compounded chance-absolutely free charge, q is the continuous dividend generate, and G is definitely the volatility on the underlying stock. 英国母语老师不仅帮你纠正文章中所有拼写、语法、标点和用词错误，还会修改... https://bookmarksoflife.com/story14347319/%E8%8B%B1%E5%9B%BD%E8%AE%BA%E6%96%87%E4%BB%A3%E5%86%99-fundamentals-explained