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 201 56.9%
2 United States 45 12.7%
3 Canada 39 11%
4 Germany 36 10.2%
5 Sweden 15 4.2%
6 Russia 3 0.8%
7 Brazil 3 0.8%
8 Czech Republic 2 0.6%
9 Hong Kong 2 0.6%
10 Japan 2 0.6%
11 Philippines 2 0.6%
12 Timor-Leste 2 0.6%
13 India 1 0.3%