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 161 60.5%
2 United States 58 21.8%
3 Germany 25 9.4%
4 Ireland 9 3.4%
5 India 4 1.5%
6 Canada 3 1.1%
7 Netherlands 2 0.8%
8 Russia 1 0.4%
9 Korea, Republic of 1 0.4%
10 Hong Kong 1 0.4%
11 France 1 0.4%