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 191 61.8%
2 United States 53 17.2%
3 Germany 40 12.9%
4 Taiwan 6 1.9%
5 Netherlands 5 1.6%
6 France 3 1%
7 Canada 3 1%
8 United Kingdom 2 0.6%
9 Hong Kong 2 0.6%
10 Ireland 1 0.3%
11 Macao 1 0.3%
12 Singapore 1 0.3%
13 Ukraine 1 0.3%