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 187 63.6%
2 United States 41 13.9%
3 Germany 25 8.5%
4 Hong Kong 18 6.1%
5 Korea, Republic of 6 2%
6 Singapore 5 1.7%
7 Taiwan 3 1%
8 Saudi Arabia 3 1%
9 Netherlands 2 0.7%
10 Japan 2 0.7%
11 France 1 0.3%
12 Canada 1 0.3%