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 109 49.8%
2 United States 50 22.8%
3 Netherlands 20 9.1%
4 Germany 15 6.8%
5 Hong Kong 8 3.7%
6 Korea, Republic of 4 1.8%
7 Japan 3 1.4%
8 United Kingdom 3 1.4%
9 Taiwan 3 1.4%
10 United Arab Emirates 1 0.5%
11 Guinea 1 0.5%
12 1 0.5%
13 Portugal 1 0.5%