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 152 67.6%
2 United States 28 12.4%
3 Germany 23 10.2%
4 Hong Kong 8 3.6%
5 Canada 5 2.2%
6 Singapore 4 1.8%
7 Sweden 1 0.4%
8 United Kingdom 1 0.4%
9 France 1 0.4%
10 Portugal 1 0.4%
11 Russia 1 0.4%