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 United States 200 43.8%
2 China 188 41.1%
3 Germany 28 6.1%
4 Canada 14 3.1%
5 Taiwan 5 1.1%
6 Hong Kong 5 1.1%
7 Singapore 4 0.9%
8 Italy 3 0.7%
9 Russia 3 0.7%
10 Malaysia 2 0.4%
11 Myanmar 2 0.4%
12 Netherlands 1 0.2%
13 United Kingdom 1 0.2%
14 Venezuela, Bolivarian Republic of 1 0.2%