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 41 44.1%
2 China 26 28%
3 Germany 5 5.4%
4 Taiwan 4 4.3%
5 Canada 4 4.3%
6 France 4 4.3%
7 Ukraine 3 3.2%
8 United Kingdom 2 2.2%
9 Hong Kong 2 2.2%
10 Malaysia 1 1.1%
11 Czech Republic 1 1.1%