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 471 44.3%
2 United States 262 24.6%
3 Netherlands 173 16.3%
4 France 64 6%
5 Germany 33 3.1%
6 Czech Republic 14 1.3%
7 Canada 12 1.1%
8 Russia 10 0.9%
9 Korea, Republic of 7 0.7%
10 India 5 0.5%
11 Hong Kong 4 0.4%
12 Taiwan 3 0.3%
13 United Kingdom 2 0.2%
14 Bahrain 2 0.2%
15 Moldova, Republic of 1 0.1%
16 Romania 1 0.1%