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 109 55.9%
2 United States 46 23.6%
3 Netherlands 13 6.7%
4 Germany 7 3.6%
5 Hong Kong 6 3.1%
6 Japan 3 1.5%
7 United Kingdom 3 1.5%
8 2 1%
9 Canada 1 0.5%
10 Korea, Republic of 1 0.5%
11 Malaysia 1 0.5%
12 Portugal 1 0.5%
13 Russia 1 0.5%
14 Singapore 1 0.5%