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 144 65.5%
2 United States 39 17.7%
3 Germany 21 9.5%
4 India 3 1.4%
5 Korea, Republic of 2 0.9%
6 Hong Kong 2 0.9%
7 South Africa 2 0.9%
8 Brazil 2 0.9%
9 Turkey 1 0.5%
10 United Kingdom 1 0.5%
11 Moldova, Republic of 1 0.5%
12 Netherlands 1 0.5%
13 Russia 1 0.5%