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 54 39.1%
2 United States 29 21%
3 Netherlands 21 15.2%
4 Germany 13 9.4%
5 France 6 4.3%
6 Canada 3 2.2%
7 Hong Kong 3 2.2%
8 Singapore 2 1.4%
9 Sweden 2 1.4%
10 Tajikistan 2 1.4%
11 United Kingdom 1 0.7%
12 Australia 1 0.7%
13 Moldova, Republic of 1 0.7%