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 143 55.4%
2 United States 70 27.1%
3 Germany 31 12%
4 Hong Kong 2 0.8%
5 France 2 0.8%
6 Singapore 2 0.8%
7 Taiwan 2 0.8%
8 United Kingdom 2 0.8%
9 Canada 1 0.4%
10 Ukraine 1 0.4%
11 Kazakhstan 1 0.4%
12 Netherlands 1 0.4%