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 139 66.5%
2 United States 31 14.8%
3 Germany 11 5.3%
4 Canada 8 3.8%
5 Hong Kong 5 2.4%
6 Taiwan 4 1.9%
7 United Kingdom 2 1%
8 Japan 2 1%
9 Malaysia 2 1%
10 Singapore 2 1%
11 France 1 0.5%
12 Portugal 1 0.5%
13 Ukraine 1 0.5%