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 174 61.5%
2 United States 38 13.4%
3 Germany 29 10.2%
4 Taiwan 12 4.2%
5 Hong Kong 11 3.9%
6 Korea, Republic of 5 1.8%
7 Singapore 4 1.4%
8 Netherlands 3 1.1%
9 Russia 2 0.7%
10 Sweden 2 0.7%
11 Mauritius 1 0.4%
12 Brazil 1 0.4%
13 Viet Nam 1 0.4%