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 88 34.2%
2 United States 86 33.5%
3 Netherlands 19 7.4%
4 France 18 7%
5 Sweden 16 6.2%
6 Germany 10 3.9%
7 India 6 2.3%
8 Korea, Republic of 6 2.3%
9 Russia 3 1.2%
10 Singapore 1 0.4%
11 Switzerland 1 0.4%
12 Philippines 1 0.4%
13 Poland 1 0.4%
14 Finland 1 0.4%