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 Germany 42 32.1%
2 China 26 19.8%
3 United States 19 14.5%
4 Netherlands 15 11.5%
5 United Kingdom 8 6.1%
6 Korea, Republic of 6 4.6%
7 France 6 4.6%
8 Portugal 4 3.1%
9 Japan 2 1.5%
10 Australia 2 1.5%
11 Canada 1 0.8%