BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 China 140 52%
2 United States 92 34.2%
3 Netherlands 14 5.2%
4 Germany 5 1.9%
5 Canada 5 1.9%
6 Japan 4 1.5%
7 France 3 1.1%
8 Korea, Republic of 2 0.7%
9 Hong Kong 1 0.4%
10 Russia 1 0.4%
11 South Africa 1 0.4%
12 Sweden 1 0.4%