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 94 56.6%
2 United States 37 22.3%
3 Germany 12 7.2%
4 Hong Kong 7 4.2%
5 Taiwan 7 4.2%
6 Canada 3 1.8%
7 Singapore 2 1.2%
8 France 1 0.6%
9 Netherlands 1 0.6%
10 Portugal 1 0.6%
11 United Kingdom 1 0.6%