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 57 44.9%
2 Netherlands 25 19.7%
3 United States 16 12.6%
4 France 8 6.3%
5 Russia 7 5.5%
6 Germany 5 3.9%
7 Hong Kong 2 1.6%
8 Singapore 2 1.6%
9 Ukraine 1 0.8%
10 India 1 0.8%
11 Japan 1 0.8%
12 Australia 1 0.8%
13 Czech Republic 1 0.8%