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 213 62.5%
2 United States 64 18.8%
3 Germany 28 8.2%
4 Taiwan 10 2.9%
5 Ireland 7 2.1%
6 Russia 3 0.9%
7 Singapore 3 0.9%
8 Hong Kong 3 0.9%
9 Czech Republic 3 0.9%
10 Japan 2 0.6%
11 United Arab Emirates 2 0.6%
12 Viet Nam 2 0.6%
13 North Macedonia 1 0.3%