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 385 39.9%
2 United States 292 30.3%
3 Netherlands 108 11.2%
4 Germany 79 8.2%
5 Sweden 22 2.3%
6 Korea, Republic of 14 1.5%
7 Canada 14 1.5%
8 France 12 1.2%
9 Taiwan 7 0.7%
10 Cote D'ivoire 5 0.5%
11 Hong Kong 5 0.5%
12 Russia 4 0.4%
13 India 3 0.3%
14 Japan 3 0.3%
15 United Kingdom 3 0.3%
16 Thailand 2 0.2%
17 Macao 2 0.2%
18 Philippines 2 0.2%
19 Mexico 1 0.1%
20 Singapore 1 0.1%
21 Denmark 1 0.1%