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 121 52.6%
2 United States 50 21.7%
3 Germany 39 17%
4 Hong Kong 12 5.2%
5 Ireland 2 0.9%
6 Korea, Republic of 1 0.4%
7 Macao 1 0.4%
8 Portugal 1 0.4%
9 Singapore 1 0.4%
10 Taiwan 1 0.4%
11 Canada 1 0.4%