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 232 58.6%
2 United States 62 15.7%
3 Germany 38 9.6%
4 Canada 27 6.8%
5 France 17 4.3%
6 Hong Kong 7 1.8%
7 Russia 4 1%
8 Korea, Republic of 2 0.5%
9 Taiwan 2 0.5%
10 Turkey 1 0.3%
11 United Kingdom 1 0.3%
12 Moldova, Republic of 1 0.3%
13 Netherlands 1 0.3%
14 Singapore 1 0.3%