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 205 43.7%
2 China 114 24.3%
3 Netherlands 44 9.4%
4 Germany 40 8.5%
5 France 23 4.9%
6 Korea, Republic of 11 2.3%
7 Hong Kong 9 1.9%
8 Portugal 6 1.3%
9 Canada 4 0.9%
10 3 0.6%
11 Norway 3 0.6%
12 North Macedonia 2 0.4%
13 Taiwan 2 0.4%
14 Morocco 2 0.4%
15 Finland 1 0.2%