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 251 40.9%
2 China 213 34.7%
3 Netherlands 97 15.8%
4 Germany 35 5.7%
5 India 3 0.5%
6 Australia 3 0.5%
7 Taiwan 3 0.5%
8 Switzerland 2 0.3%
9 Malaysia 2 0.3%
10 Sweden 1 0.2%
11 Italy 1 0.2%
12 Hong Kong 1 0.2%
13 United Kingdom 1 0.2%