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 160 56.5%
2 United States 50 17.7%
3 Germany 47 16.6%
4 Canada 13 4.6%
5 Netherlands 3 1.1%
6 Singapore 2 0.7%
7 Australia 2 0.7%
8 Taiwan 2 0.7%
9 United Kingdom 1 0.4%
10 Japan 1 0.4%
11 Sri Lanka 1 0.4%
12 Norway 1 0.4%