BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 194 52.9%
2 United States 77 21%
3 Germany 39 10.6%
4 Netherlands 23 6.3%
5 Canada 16 4.4%
6 Russia 4 1.1%
7 Ireland 3 0.8%
8 Italy 3 0.8%
9 Japan 2 0.5%
10 Ukraine 2 0.5%
11 Singapore 1 0.3%
12 Mauritius 1 0.3%
13 Australia 1 0.3%
14 Hong Kong 1 0.3%