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 199 58.4%
2 United States 76 22.3%
3 Germany 39 11.4%
4 Ireland 5 1.5%
5 Canada 5 1.5%
6 Hong Kong 3 0.9%
7 Iran, Islamic Republic of 2 0.6%
8 Macao 2 0.6%
9 Finland 2 0.6%
10 Viet Nam 2 0.6%
11 Netherlands 2 0.6%
12 Singapore 2 0.6%
13 Brazil 1 0.3%
14 Moldova, Republic of 1 0.3%