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 189 74.1%
2 United States 38 14.9%
3 Germany 9 3.5%
4 Hong Kong 7 2.7%
5 Malaysia 3 1.2%
6 Canada 3 1.2%
7 France 1 0.4%
8 Netherlands 1 0.4%
9 Poland 1 0.4%
10 Portugal 1 0.4%
11 Russia 1 0.4%
12 Taiwan 1 0.4%