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 218 61.4%
2 Germany 69 19.4%
3 United States 40 11.3%
4 Canada 5 1.4%
5 Singapore 3 0.8%
6 Taiwan 3 0.8%
7 Ireland 3 0.8%
8 Japan 3 0.8%
9 Hong Kong 2 0.6%
10 Finland 2 0.6%
11 Australia 2 0.6%
12 Brazil 2 0.6%
13 Bulgaria 2 0.6%
14 Norway 1 0.3%