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 49 35%
2 United States 45 32.1%
3 Netherlands 13 9.3%
4 Germany 11 7.9%
5 United Kingdom 8 5.7%
6 Hong Kong 5 3.6%
7 Canada 4 2.9%
8 Taiwan 2 1.4%
9 Portugal 1 0.7%
10 Malaysia 1 0.7%
11 France 1 0.7%