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 176 53.8%
2 United States 50 15.3%
3 Germany 40 12.2%
4 Netherlands 23 7%
5 Canada 13 4%
6 India 5 1.5%
7 Singapore 5 1.5%
8 United Kingdom 3 0.9%
9 Russia 3 0.9%
10 Brazil 2 0.6%
11 Austria 2 0.6%
12 Portugal 2 0.6%
13 Romania 1 0.3%
14 Hong Kong 1 0.3%
15 Belarus 1 0.3%