都是说的一样的吧

现在95％的人都看的是notes,另外有人看handbook+notes啊

2# zxuetong
额，我想问的是，BT材料是什么材料？貌似跟S的不一样。

bionic turtle, David Happer's material is much better than S

哪里可以下载到么？我已经跟着S的note复习了很久了，还有一个多月要考part1 希望能对照handbook参考下。

you have to buy ... if u only need notes, you may go to vividbook.org to pay $50. if u need spreadsheets and videos, looks like the only place is bionicturtle.com, that's $240 for level 1.