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 33 34.4%
2 United States 23 24%
3 Netherlands 21 21.9%
4 Germany 7 7.3%
5 Canada 4 4.2%
6 France 3 3.1%
7 Hong Kong 2 2.1%
8 Taiwan 1 1%
9 Australia 1 1%
10 Belgium 1 1%