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 442 43.7%
2 United States 272 26.9%
3 Netherlands 127 12.5%
4 France 56 5.5%
5 Germany 48 4.7%
6 Czech Republic 18 1.8%
7 Canada 14 1.4%
8 Ireland 6 0.6%
9 Korea, Republic of 5 0.5%
10 Hong Kong 5 0.5%
11 India 5 0.5%
12 Australia 4 0.4%
13 Taiwan 4 0.4%
14 Bahrain 2 0.2%
15 Brazil 2 0.2%
16 Sweden 1 0.1%
17 Japan 1 0.1%