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 92 51.4%
2 United States 28 15.6%
3 Netherlands 17 9.5%
4 Germany 10 5.6%
5 Russia 7 3.9%
6 Sweden 6 3.4%
7 Canada 6 3.4%
8 Japan 6 3.4%
9 Hong Kong 3 1.7%
10 Czech Republic 1 0.6%
11 Australia 1 0.6%
12 Belgium 1 0.6%
13 New Zealand 1 0.6%