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 242 75.2%
2 United States 41 12.7%
3 Germany 10 3.1%
4 Netherlands 9 2.8%
5 Taiwan 8 2.5%
6 Hong Kong 4 1.2%
7 United Kingdom 2 0.6%
8 Canada 1 0.3%
9 Ireland 1 0.3%
10 Korea, Republic of 1 0.3%
11 Portugal 1 0.3%
12 Russia 1 0.3%
13 Sweden 1 0.3%