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 431 54.1%
2 United States 149 18.7%
3 Netherlands 108 13.6%
4 Germany 55 6.9%
5 Canada 16 2%
6 France 6 0.8%
7 Hong Kong 6 0.8%
8 Russia 6 0.8%
9 Taiwan 3 0.4%
10 Japan 3 0.4%
11 United Kingdom 2 0.3%
12 Switzerland 2 0.3%
13 India 2 0.3%
14 Czech Republic 2 0.3%
15 Malaysia 2 0.3%
16 Israel 1 0.1%
17 Ghana 1 0.1%
18 Korea, Republic of 1 0.1%
19 Norway 1 0.1%