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.
加加体育平台（网址:EDF6.COM）加加体育平台_加加体育平台_加加体育平台_加加体育平台_加加体育平台加加体育平台_加加体育平台_加加体育平台_1D77DA7ED
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
