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 266 56.6%
2 United States 74 15.7%
3 Germany 41 8.7%
4 Canada 34 7.2%
5 Sweden 19 4%
6 Netherlands 15 3.2%
7 Korea, Republic of 6 1.3%
8 Hong Kong 4 0.9%
9 Taiwan 4 0.9%
10 Austria 2 0.4%
11 Belarus 2 0.4%
12 Singapore 2 0.4%
13 United Kingdom 1 0.2%