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 200 62.1%
2 United States 53 16.5%
3 Germany 28 8.7%
4 Canada 13 4%
5 Hong Kong 10 3.1%
6 Taiwan 5 1.6%
7 Russia 3 0.9%
8 Japan 3 0.9%
9 Netherlands 2 0.6%
10 United Kingdom 2 0.6%
11 Denmark 1 0.3%
12 France 1 0.3%
13 Malaysia 1 0.3%