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 90 39.8%
2 United States 89 39.4%
3 Germany 16 7.1%
4 Hong Kong 10 4.4%
5 Canada 6 2.7%
6 Japan 4 1.8%
7 Ukraine 3 1.3%
8 United Kingdom 2 0.9%
9 Norway 2 0.9%
10 Portugal 1 0.4%
11 Taiwan 1 0.4%
12 Macao 1 0.4%
13 Netherlands 1 0.4%