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 United States 37 27%
2 China 35 25.5%
3 Germany 15 10.9%
4 Egypt 12 8.8%
5 Netherlands 10 7.3%
6 Chile 8 5.8%
7 France 4 2.9%
8 Japan 4 2.9%
9 Korea, Republic of 3 2.2%
10 Colombia 3 2.2%
11 Singapore 2 1.5%
12 India 2 1.5%
13 Canada 1 0.7%
14 Hong Kong 1 0.7%