BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 866 80.3%
2 United States 126 11.7%
3 China 52 4.8%
4 Germany 10 0.9%
5 France 6 0.6%
6 Taiwan 5 0.5%
7 Macao 4 0.4%
8 Ukraine 3 0.3%
9 United Kingdom 2 0.2%
10 Norway 1 0.1%
11 Hong Kong 1 0.1%
12 Korea, Republic of 1 0.1%
13 Canada 1 0.1%