Youtube上的频道如 Study Extent


77,300 3.8%

10,500,000 3.02%

8,060 3.43%

2,530,000 6.53%

3,390,000 1.13%

10,200 5.22%

760,000 1.68%



143,000 3.75%

90,000 4.61%

2,330,000 3.94%


3,210,000 2.78%

2,360,000 3.11%

4,070,000 2.84%

138,000 3.82%

8,300 3.2%

104,000 7.29%



85,000 3.89%



12,400 7.22%