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 178 77.1%
2 United States 26 11.3%
3 Germany 12 5.2%
4 Hong Kong 5 2.2%
5 Brazil 3 1.3%
6 Canada 1 0.4%
7 Estonia 1 0.4%
8 France 1 0.4%
9 Macao 1 0.4%
10 Netherlands 1 0.4%
11 Portugal 1 0.4%
12 Russia 1 0.4%