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 134 59.6%
2 United States 65 28.9%
3 Germany 7 3.1%
4 Taiwan 6 2.7%
5 Hong Kong 3 1.3%
6 United Kingdom 2 0.9%
7 Singapore 2 0.9%
8 Japan 1 0.4%
9 Macao 1 0.4%
10 Netherlands 1 0.4%
11 Poland 1 0.4%
12 Portugal 1 0.4%
13 Russia 1 0.4%