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 96 47.8%
2 United States 57 28.4%
3 Germany 21 10.4%
4 Hong Kong 7 3.5%
5 Taiwan 5 2.5%
6 Australia 4 2%
7 2 1%
8 Japan 2 1%
9 Ukraine 2 1%
10 United Kingdom 2 1%
11 Portugal 1 0.5%
12 Russia 1 0.5%
13 Czech Republic 1 0.5%