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 195 73.6%
2 United States 25 9.4%
3 France 17 6.4%
4 Russia 10 3.8%
5 Netherlands 7 2.6%
6 Uganda 2 0.8%
7 Czech Republic 2 0.8%
8 Brazil 2 0.8%
9 Japan 2 0.8%
10 Germany 1 0.4%
11 Greece 1 0.4%
12 India 1 0.4%