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.
BB贝博app（网址:NBA88.COM）BB贝博app_BB贝博app_BB贝博app_C1H10CK1
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
