BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 38 32.8%
2 United States 26 22.4%
3 Germany 12 10.3%
4 Netherlands 11 9.5%
5 France 9 7.8%
6 Canada 6 5.2%
7 India 3 2.6%
8 Japan 2 1.7%
9 2 1.7%
10 Switzerland 2 1.7%
11 Poland 1 0.9%
12 Serbia 1 0.9%
13 Czech Republic 1 0.9%
14 Malaysia 1 0.9%
15 Hong Kong 1 0.9%