BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 104 51.2%
2 Netherlands 39 19.2%
3 United States 27 13.3%
4 Germany 14 6.9%
5 France 9 4.4%
6 United Kingdom 3 1.5%
7 Hong Kong 2 1%
8 Korea, Republic of 2 1%
9 Malaysia 2 1%
10 Australia 1 0.5%