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 168 45.4%
2 United States 52 14.1%
3 Germany 39 10.5%
4 Canada 39 10.5%
5 Netherlands 26 7%
6 Sweden 19 5.1%
7 Hong Kong 7 1.9%
8 Taiwan 6 1.6%
9 United Kingdom 4 1.1%
10 Malaysia 4 1.1%
11 Australia 2 0.5%
12 Mexico 1 0.3%
13 Moldova, Republic of 1 0.3%
14 Japan 1 0.3%
15 Thailand 1 0.3%