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 246 43.9%
2 United States 154 27.5%
3 Netherlands 61 10.9%
4 Germany 38 6.8%
5 Korea, Republic of 13 2.3%
6 Sweden 11 2%
7 France 10 1.8%
8 Russia 6 1.1%
9 Norway 4 0.7%
10 Viet Nam 3 0.5%
11 Romania 2 0.4%
12 Switzerland 2 0.4%
13 Moldova, Republic of 2 0.4%
14 Hong Kong 2 0.4%
15 Cote D'ivoire 2 0.4%
16 Finland 2 0.4%
17 Ireland 1 0.2%
18 Philippines 1 0.2%
19 Thailand 1 0.2%