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 72 38.9%
2 United States 30 16.2%
3 South Africa 21 11.4%
4 Korea, Republic of 19 10.3%
5 Netherlands 13 7%
6 India 10 5.4%
7 Germany 8 4.3%
8 Hong Kong 3 1.6%
9 Japan 3 1.6%
10 Austria 2 1.1%
11 Switzerland 1 0.5%
12 Venezuela, Bolivarian Republic of 1 0.5%
13 Singapore 1 0.5%
14 Denmark 1 0.5%