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 45 48.9%
2 United States 13 14.1%
3 Netherlands 10 10.9%
4 France 5 5.4%
5 Hong Kong 5 5.4%
6 Canada 4 4.3%
7 Norway 3 3.3%
8 Taiwan 2 2.2%
9 Australia 2 2.2%
10 Czech Republic 2 2.2%
11 Germany 1 1.1%