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 233 60.8%
2 United States 47 12.3%
3 Germany 46 12%
4 Netherlands 28 7.3%
5 Canada 13 3.4%
6 France 3 0.8%
7 Bangladesh 2 0.5%
8 Hong Kong 2 0.5%
9 India 2 0.5%
10 Ireland 2 0.5%
11 Korea, Republic of 2 0.5%
12 Singapore 2 0.5%
13 Ukraine 1 0.3%