BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 40 44.9%
2 Germany 22 24.7%
3 China 11 12.4%
4 France 5 5.6%
5 Egypt 4 4.5%
6 Ghana 1 1.1%
7 India 1 1.1%
8 Jordan 1 1.1%
9 Korea, Republic of 1 1.1%
10 Kyrgyzstan 1 1.1%
11 Saudi Arabia 1 1.1%
12 Ukraine 1 1.1%