By the way, here's an answer:
The easternmost point of China lies at the intersection of the middle line of Heilongjiang main channel and Wusuli River.
The northernmost position of China is on the center line of Heilongjiang main channel at the northern end of Mohe County.
The westernmost position of our country is in Pamirs;
The southernmost position of China is Zengmu shoal in Nansha Islands.
Fuyuan, the easternmost city in China.
Sanya, the southernmost city in China.
Heihe City, Heilongjiang Province, is the northernmost city in China.
The largest city in China is Wuqia, Xinjiang.