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 51 36.7%
2 United States 29 20.9%
3 Germany 20 14.4%
4 Hong Kong 11 7.9%
5 Canada 10 7.2%
6 Taiwan 6 4.3%
7 United Kingdom 4 2.9%
8 Malaysia 2 1.4%
9 Netherlands 2 1.4%
10 France 2 1.4%
11 Korea, Republic of 1 0.7%
12 Portugal 1 0.7%