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 578 50.3%
2 United States 206 17.9%
3 Netherlands 147 12.8%
4 France 78 6.8%
5 Germany 50 4.4%
6 Canada 19 1.7%
7 Czech Republic 14 1.2%
8 Hong Kong 13 1.1%
9 Korea, Republic of 7 0.6%
10 Turkey 7 0.6%
11 Russia 6 0.5%
12 India 6 0.5%
13 Taiwan 5 0.4%
14 Australia 4 0.3%
15 Norway 3 0.3%
16 Ukraine 2 0.2%
17 United Kingdom 2 0.2%
18 Ireland 1 0.1%