云手机是什么？云手机与智能手机不同之处在哪？云手机是将云计算技术应用于网络终端服务，通过云服务器实现云服务的手机。这种手机可以通过自己的系统和厂商···

The advance purchase of a put or call option with a strike price that will be determined at a later date, typically when the option becomes active. A forward s···