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 69 61.1%
2 United States 19 16.8%
3 Germany 10 8.8%
4 Netherlands 4 3.5%
5 Switzerland 2 1.8%
6 Taiwan 2 1.8%
7 Ireland 2 1.8%
8 Korea, Republic of 2 1.8%
9 Japan 1 0.9%
10 Australia 1 0.9%
11 Canada 1 0.9%