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.
第一小时50个任务;每个后续小时因疲劳减少5个。8小时内有多少个任务?
第一小时50个任务;每个后续小时因疲劳减少5个。8小时内有多少个任务?
Natural Language
Math Input
Extended Keyboard