BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 164 50.8%
2 United States 69 21.4%
3 Germany 28 8.7%
4 Canada 19 5.9%
5 Hong Kong 12 3.7%
6 Taiwan 9 2.8%
7 Japan 6 1.9%
8 Singapore 3 0.9%
9 Turkey 2 0.6%
10 Ukraine 2 0.6%
11 United Kingdom 2 0.6%
12 France 2 0.6%
13 Romania 2 0.6%
14 Russia 2 0.6%
15 Mexico 1 0.3%