BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 31 44.3%
2 United States 16 22.9%
3 Germany 5 7.1%
4 Hong Kong 4 5.7%
5 Canada 4 5.7%
6 Macao 3 4.3%
7 Taiwan 2 2.9%
8 Viet Nam 1 1.4%
9 Netherlands 1 1.4%
10 Russia 1 1.4%
11 Singapore 1 1.4%
12 Japan 1 1.4%