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 92 39.7%
2 United States 36 15.5%
3 Germany 30 12.9%
4 Netherlands 17 7.3%
5 Korea, Republic of 11 4.7%
6 Hong Kong 10 4.3%
7 Taiwan 9 3.9%
8 Sweden 8 3.4%
9 France 8 3.4%
10 Ireland 6 2.6%
11 India 4 1.7%
12 Sri Lanka 1 0.4%