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 143 61.6%
2 United States 54 23.3%
3 Hong Kong 10 4.3%
4 Germany 8 3.4%
5 Canada 4 1.7%
6 France 4 1.7%
7 Japan 3 1.3%
8 Korea, Republic of 3 1.3%
9 Romania 1 0.4%
10 Singapore 1 0.4%
11 United Kingdom 1 0.4%