BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 219 40.2%
2 China 186 34.1%
3 Netherlands 41 7.5%
4 Germany 35 6.4%
5 France 20 3.7%
6 Canada 14 2.6%
7 Hong Kong 9 1.7%
8 Portugal 7 1.3%
9 4 0.7%
10 Ireland 2 0.4%
11 Korea, Republic of 2 0.4%
12 Russia 2 0.4%
13 Singapore 2 0.4%
14 United Kingdom 2 0.4%