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 315 70.5%
2 United States 64 14.3%
3 Germany 22 4.9%
4 Hong Kong 13 2.9%
5 Singapore 9 2%
6 Taiwan 6 1.3%
7 United Kingdom 4 0.9%
8 Canada 4 0.9%
9 Australia 3 0.7%
10 Japan 3 0.7%
11 Korea, Republic of 2 0.4%
12 Netherlands 2 0.4%