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 United States 58 39.2%
2 China 17 11.5%
3 France 17 11.5%
4 Netherlands 14 9.5%
5 Russia 10 6.8%
6 Korea, Republic of 6 4.1%
7 Iraq 5 3.4%
8 Germany 5 3.4%
9 Australia 4 2.7%
10 Egypt 2 1.4%
11 Ethiopia 2 1.4%
12 Philippines 2 1.4%
13 Singapore 2 1.4%
14 Ukraine 2 1.4%
15 Iran, Islamic Republic of 1 0.7%
16 Norway 1 0.7%