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 33 37.1%
2 United States 22 24.7%
3 Netherlands 13 14.6%
4 Germany 10 11.2%
5 France 3 3.4%
6 Australia 2 2.2%
7 Japan 2 2.2%
8 Singapore 1 1.1%
9 United Kingdom 1 1.1%
10 Brazil 1 1.1%
11 Canada 1 1.1%