BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 400 69.2%
2 United States 109 18.9%
3 Germany 29 5%
4 Canada 26 4.5%
5 Australia 3 0.5%
6 Netherlands 3 0.5%
7 Romania 2 0.3%
8 Singapore 2 0.3%
9 Hong Kong 2 0.3%
10 Mexico 2 0.3%