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 137 65.2%
2 United States 36 17.1%
3 Germany 15 7.1%
4 Hong Kong 7 3.3%
5 Korea, Republic of 3 1.4%
6 Canada 3 1.4%
7 Taiwan 3 1.4%
8 United Kingdom 2 1%
9 North Macedonia 1 0.5%
10 Portugal 1 0.5%
11 Russia 1 0.5%
12 Singapore 1 0.5%