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 United States 14 27.5%
2 China 12 23.5%
3 Germany 6 11.8%
4 France 5 9.8%
5 Canada 3 5.9%
6 Netherlands 3 5.9%
7 Singapore 3 5.9%
8 Switzerland 2 3.9%
9 Australia 2 3.9%
10 Malaysia 1 2%