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 47 33.1%
2 United States 33 23.2%
3 Netherlands 22 15.5%
4 Germany 15 10.6%
5 Hong Kong 8 5.6%
6 Taiwan 6 4.2%
7 United Kingdom 3 2.1%
8 Canada 3 2.1%
9 1 0.7%
10 Portugal 1 0.7%
11 Japan 1 0.7%
12 Turkey 1 0.7%
13 Ukraine 1 0.7%