Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
爱体育官方网站专业版（永久链接:SE8.TV）爱体育官方网站专业版_爱体育官方网站专业版_爱体育官方网站专业版_22L3L2yAA
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
