BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 182 67.2%
2 United States 45 16.6%
3 Japan 8 3%
4 Hong Kong 7 2.6%
5 Netherlands 5 1.8%
6 Canada 5 1.8%
7 Germany 4 1.5%
8 Morocco 4 1.5%
9 3 1.1%
10 Australia 2 0.7%
11 South Africa 2 0.7%
12 Sweden 1 0.4%
13 Taiwan 1 0.4%
14 Denmark 1 0.4%
15 Korea, Republic of 1 0.4%