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 70 48.6%
2 China 31 21.5%
3 Netherlands 13 9%
4 France 8 5.6%
5 Colombia 4 2.8%
6 India 3 2.1%
7 Italy 3 2.1%
8 Korea, Republic of 2 1.4%
9 Germany 2 1.4%
10 Guyana 2 1.4%
11 Switzerland 2 1.4%
12 United Kingdom 1 0.7%
13 Spain 1 0.7%
14 Canada 1 0.7%
15 Mauritius 1 0.7%