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 630 83.1%
2 United States 54 7.1%
3 South Africa 18 2.4%
4 Germany 12 1.6%
5 Netherlands 12 1.6%
6 India 9 1.2%
7 Korea, Republic of 9 1.2%
8 Taiwan 3 0.4%
9 Hong Kong 3 0.4%
10 Finland 3 0.4%
11 Ireland 1 0.1%
12 Italy 1 0.1%
13 North Macedonia 1 0.1%
14 Russia 1 0.1%
15 United Kingdom 1 0.1%