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 132 59.2%
2 United States 53 23.8%
3 Japan 11 4.9%
4 Netherlands 7 3.1%
5 Germany 7 3.1%
6 Hong Kong 4 1.8%
7 Taiwan 3 1.3%
8 Korea, Republic of 2 0.9%
9 Poland 1 0.4%
10 Portugal 1 0.4%
11 Iran, Islamic Republic of 1 0.4%
12 Canada 1 0.4%