2022/4/28
https://www.dropbox.com/scl/fi/sh796tj1krmt3p6hs9l1z/3D.paper?dl=0&rlkey=2eci14n3ylyoy7ruqnlo3ml46
2022/4/28
https://quip.com/2Sr3A3k764eh/sin-cos-tan
2022/4/21
https://paper.dropbox.com/doc/3--BgDGZrRALaYBdhPXGspKK~yFAQ-WyoUSSCHxKeoZFZqRIuIo
2022/4/20
https://paper.dropbox.com/doc/Google-Analytics--BhXQkemjag8o4RYOjPLiwmVMAQ-5NCjQbg8OhrGvyLMxwWfo
2022/4/14
https://paper.dropbox.com/doc/gitVS-Code--BfI1BKNb_YmXqiKyH7H0G8LQAg-grKJWLnACLbD1Qvj65HC4