BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 616 85.8%
2 United States 55 7.7%
3 Germany 16 2.2%
4 Netherlands 10 1.4%
5 Hong Kong 4 0.6%
6 Canada 4 0.6%
7 Taiwan 4 0.6%
8 Singapore 3 0.4%
9 Cambodia 2 0.3%
10 France 1 0.1%
11 Korea, Republic of 1 0.1%
12 Portugal 1 0.1%
13 United Kingdom 1 0.1%