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 United States 36 35.6%
2 China 27 26.7%
3 Canada 10 9.9%
4 Netherlands 7 6.9%
5 Taiwan 5 5%
6 Hong Kong 4 4%
7 Japan 4 4%
8 Germany 3 3%
9 Czech Republic 2 2%
10 Spain 2 2%
11 Macao 1 1%