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 89 43.6%
2 United States 66 32.4%
3 Netherlands 16 7.8%
4 Germany 13 6.4%
5 Canada 9 4.4%
6 Hong Kong 3 1.5%
7 Japan 2 1%
8 Taiwan 2 1%
9 Ukraine 1 0.5%
10 United Kingdom 1 0.5%
11 Portugal 1 0.5%
12 France 1 0.5%