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 131 56.5%
2 United States 56 24.1%
3 Germany 19 8.2%
4 Taiwan 5 2.2%
5 United Kingdom 5 2.2%
6 Australia 5 2.2%
7 Netherlands 3 1.3%
8 Hong Kong 3 1.3%
9 India 2 0.9%
10 Malaysia 2 0.9%
11 Switzerland 1 0.4%