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 198 58.9%
2 United States 74 22%
3 Germany 38 11.3%
4 Canada 9 2.7%
5 Netherlands 6 1.8%
6 Hong Kong 3 0.9%
7 Norway 2 0.6%
8 United Kingdom 2 0.6%
9 Brazil 1 0.3%
10 Russia 1 0.3%
11 Singapore 1 0.3%
12 Ireland 1 0.3%