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 45 35.2%
2 United States 40 31.2%
3 Germany 11 8.6%
4 Netherlands 7 5.5%
5 United Kingdom 5 3.9%
6 Hong Kong 5 3.9%
7 Kazakhstan 3 2.3%
8 Malaysia 3 2.3%
9 Canada 3 2.3%
10 Australia 2 1.6%
11 Japan 2 1.6%
12 France 1 0.8%
13 Norway 1 0.8%