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
1 309 72.2%
2 China 47 11%
3 United States 47 11%
4 France 7 1.6%
5 Germany 7 1.6%
6 Canada 3 0.7%
7 Korea, Republic of 3 0.7%
8 India 2 0.5%
9 Bolivia, Plurinational State of 1 0.2%
10 Hong Kong 1 0.2%
11 Philippines 1 0.2%