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 54.1%
2 China 16 21.6%
3 Canada 6 8.1%
4 France 4 5.4%
5 Russia 3 4.1%
6 Hong Kong 2 2.7%
7 Netherlands 1 1.4%
8 Germany 1 1.4%
9 Bahrain 1 1.4%