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 231 74.3%
2 United States 54 17.4%
3 Germany 8 2.6%
4 Japan 6 1.9%
5 Hong Kong 5 1.6%
6 United Kingdom 2 0.6%
7 France 1 0.3%
8 Korea, Republic of 1 0.3%
9 Netherlands 1 0.3%
10 Portugal 1 0.3%
11 Russia 1 0.3%