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 134 61.2%
2 United States 43 19.6%
3 Germany 27 12.3%
4 Hong Kong 4 1.8%
5 Taiwan 3 1.4%
6 United Kingdom 2 0.9%
7 Netherlands 2 0.9%
8 Singapore 2 0.9%
9 Kenya 1 0.5%
10 Moldova, Republic of 1 0.5%