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 420 45.2%
2 United States 260 28%
3 Netherlands 96 10.3%
4 Germany 56 6%
5 France 34 3.7%
6 Korea, Republic of 23 2.5%
7 Canada 18 1.9%
8 Ireland 5 0.5%
9 Russia 5 0.5%
10 Hong Kong 3 0.3%
11 India 2 0.2%
12 2 0.2%
13 Singapore 2 0.2%
14 Norway 2 0.2%
15 Philippines 2 0.2%