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 196 55.4%
2 United States 56 15.8%
3 Germany 44 12.4%
4 Netherlands 22 6.2%
5 Taiwan 9 2.5%
6 Ireland 7 2%
7 Canada 6 1.7%
8 Singapore 4 1.1%
9 Norway 3 0.8%
10 Hong Kong 3 0.8%
11 Japan 2 0.6%
12 Macao 1 0.3%
13 Ukraine 1 0.3%