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 United States 55 59.1%
2 China 8 8.6%
3 France 7 7.5%
4 Germany 7 7.5%
5 Russia 4 4.3%
6 Japan 3 3.2%
7 Canada 2 2.2%
8 Hong Kong 2 2.2%
9 Italy 1 1.1%
10 Australia 1 1.1%
11 Netherlands 1 1.1%
12 Singapore 1 1.1%
13 United Kingdom 1 1.1%