2.C
Step 3 advertise
(1) (Zhong Changtong) has traveled and studied in Qingzhou, Xuzhou, Bingzhou and Jizhou for generations, and most people who make friends with him think that he is different.
(2) Soon, Gao Qian rebelled with the help of Bing, and finally ended in failure.
5. Dare to speak out; Be good at knowing people; Don't value fame and fortune. (That's right)