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 80 54.1%
2 United States 35 23.6%
3 Netherlands 15 10.1%
4 Germany 5 3.4%
5 Hong Kong 2 1.4%
6 Senegal 2 1.4%
7 Singapore 2 1.4%
8 Kazakhstan 2 1.4%
9 Korea, Republic of 2 1.4%
10 Australia 1 0.7%
11 United Kingdom 1 0.7%
12 Italy 1 0.7%