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 229 48.3%
2 United States 138 29.1%
3 Germany 35 7.4%
4 Canada 28 5.9%
5 Taiwan 16 3.4%
6 Hong Kong 11 2.3%
7 United Kingdom 7 1.5%
8 Russia 3 0.6%
9 Romania 2 0.4%
10 Australia 2 0.4%
11 Japan 1 0.2%
12 Netherlands 1 0.2%
13 Turkey 1 0.2%