- [[学习任务]]
	- DONE 背产开
		- DONE 下载课件
		- LATER 写思维导图
		  :LOGBOOK:
		  CLOCK: [2023-06-01 Thu 17:00:59]--[2023-06-01 Thu 17:01:01] => 00:00:02
		  :END:
	- Exercises