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 112 45.9%
2 United States 96 39.3%
3 Germany 13 5.3%
4 Hong Kong 6 2.5%
5 Japan 3 1.2%
6 Canada 3 1.2%
7 United Kingdom 2 0.8%
8 Korea, Republic of 2 0.8%
9 Netherlands 2 0.8%
10 Portugal 1 0.4%
11 Singapore 1 0.4%
12 Taiwan 1 0.4%
13 Lithuania 1 0.4%
14 1 0.4%