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 66 37.7%
2 United States 64 36.6%
3 Netherlands 15 8.6%
4 Germany 11 6.3%
5 Hong Kong 7 4%
6 Japan 4 2.3%
7 Taiwan 2 1.1%
8 Canada 2 1.1%
9 United Kingdom 1 0.6%
10 Portugal 1 0.6%
11 Czech Republic 1 0.6%
12 France 1 0.6%