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 80 36.9%
2 United States 69 31.8%
3 Sweden 14 6.5%
4 Russia 10 4.6%
5 France 10 4.6%
6 Korea, Republic of 9 4.1%
7 Netherlands 6 2.8%
8 India 4 1.8%
9 Norway 3 1.4%
10 Germany 3 1.4%
11 Finland 2 0.9%
12 Romania 2 0.9%
13 Mauritius 2 0.9%
14 Singapore 2 0.9%
15 Moldova, Republic of 1 0.5%