BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 United States 121 43.7%
2 China 102 36.8%
3 France 22 7.9%
4 Germany 10 3.6%
5 Korea, Republic of 5 1.8%
6 United Kingdom 4 1.4%
7 Canada 3 1.1%
8 Czech Republic 3 1.1%
9 India 2 0.7%
10 Norway 2 0.7%
11 Philippines 1 0.4%
12 Japan 1 0.4%
13 Moldova, Republic of 1 0.4%