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 163 62.7%
2 United States 35 13.5%
3 Germany 29 11.2%
4 Ireland 9 3.5%
5 Canada 6 2.3%
6 Russia 4 1.5%
7 Hong Kong 3 1.2%
8 India 3 1.2%
9 Finland 2 0.8%
10 France 2 0.8%
11 Korea, Republic of 2 0.8%
12 New Zealand 1 0.4%
13 Singapore 1 0.4%