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 160 66.9%
2 United States 41 17.2%
3 Netherlands 10 4.2%
4 Hong Kong 8 3.3%
5 Germany 7 2.9%
6 Taiwan 3 1.3%
7 Russia 2 0.8%
8 Singapore 2 0.8%
9 United Kingdom 1 0.4%
10 Italy 1 0.4%
11 Japan 1 0.4%
12 Korea, Republic of 1 0.4%
13 Portugal 1 0.4%
14 France 1 0.4%