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 137 62.3%
2 United States 37 16.8%
3 Germany 18 8.2%
4 Hong Kong 6 2.7%
5 Canada 6 2.7%
6 Taiwan 5 2.3%
7 Netherlands 2 0.9%
8 Singapore 2 0.9%
9 Italy 2 0.9%
10 Malaysia 2 0.9%
11 Moldova, Republic of 1 0.5%
12 1 0.5%
13 Uzbekistan 1 0.5%