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 179 60.3%
2 United States 54 18.2%
3 Germany 28 9.4%
4 Canada 13 4.4%
5 Hong Kong 5 1.7%
6 Netherlands 4 1.3%
7 Russia 3 1%
8 Saudi Arabia 2 0.7%
9 Taiwan 2 0.7%
10 Austria 2 0.7%
11 United Kingdom 2 0.7%
12 Brazil 1 0.3%
13 France 1 0.3%
14 Turkey 1 0.3%