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 74 52.1%
2 United States 26 18.3%
3 Netherlands 14 9.9%
4 Hong Kong 10 7%
5 Taiwan 6 4.2%
6 Germany 4 2.8%
7 France 3 2.1%
8 Malaysia 2 1.4%
9 Russia 2 1.4%
10 United Kingdom 1 0.7%