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 China 210 68.6%
2 United States 76 24.8%
3 France 3 1%
4 Germany 3 1%
5 Iran, Islamic Republic of 3 1%
6 Korea, Republic of 3 1%
7 India 2 0.7%
8 United Kingdom 2 0.7%
9 Indonesia 1 0.3%
10 Ukraine 1 0.3%
11 Argentina 1 0.3%
12 Brazil 1 0.3%