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 189 56.8%
2 United States 62 18.6%
3 Germany 38 11.4%
4 Canada 22 6.6%
5 Netherlands 8 2.4%
6 Singapore 6 1.8%
7 Hong Kong 3 0.9%
8 Australia 2 0.6%
9 United Kingdom 2 0.6%
10 Russia 1 0.3%