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 170 73.9%
2 United States 28 12.2%
3 Hong Kong 11 4.8%
4 Germany 8 3.5%
5 3 1.3%
6 Ukraine 3 1.3%
7 United Kingdom 2 0.9%
8 Canada 1 0.4%
9 Japan 1 0.4%
10 Portugal 1 0.4%
11 Russia 1 0.4%
12 Singapore 1 0.4%