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 173 54.7%
2 United States 65 20.6%
3 Germany 41 13%
4 Hong Kong 7 2.2%
5 Taiwan 6 1.9%
6 Russia 4 1.3%
7 Korea, Republic of 4 1.3%
8 Canada 3 0.9%
9 Japan 3 0.9%
10 Singapore 3 0.9%
11 Romania 2 0.6%
12 Viet Nam 2 0.6%
13 Belgium 2 0.6%
14 Macao 1 0.3%