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 186 72.7%
2 United States 33 12.9%
3 Germany 8 3.1%
4 Hong Kong 7 2.7%
5 Korea, Republic of 5 2%
6 Netherlands 5 2%
7 Singapore 3 1.2%
8 Taiwan 2 0.8%
9 United Kingdom 2 0.8%
10 Spain 1 0.4%
11 Australia 1 0.4%
12 Senegal 1 0.4%
13 France 1 0.4%
14 Mexico 1 0.4%