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 63 38.9%
2 United States 48 29.6%
3 Germany 17 10.5%
4 Canada 14 8.6%
5 Hong Kong 6 3.7%
6 Ukraine 4 2.5%
7 United Kingdom 2 1.2%
8 New Zealand 2 1.2%
9 Norway 2 1.2%
10 Portugal 1 0.6%
11 Singapore 1 0.6%
12 Taiwan 1 0.6%
13 Japan 1 0.6%