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 50 30.1%
2 United States 36 21.7%
3 Netherlands 18 10.8%
4 India 15 9%
5 Canada 11 6.6%
6 Sweden 11 6.6%
7 Russia 3 1.8%
8 Germany 3 1.8%
9 Iran, Islamic Republic of 3 1.8%
10 Korea, Republic of 3 1.8%
11 United Kingdom 3 1.8%
12 France 2 1.2%
13 Hong Kong 2 1.2%
14 Romania 1 0.6%
15 South Africa 1 0.6%
16 Taiwan 1 0.6%
17 Egypt 1 0.6%
18 Mauritius 1 0.6%
19 Moldova, Republic of 1 0.6%