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 74 51%
2 United States 25 17.2%
3 Germany 15 10.3%
4 United Kingdom 11 7.6%
5 Japan 7 4.8%
6 Hong Kong 3 2.1%
7 Iran, Islamic Republic of 1 0.7%
8 Korea, Republic of 1 0.7%
9 Macao 1 0.7%
10 Malaysia 1 0.7%
11 Norway 1 0.7%
12 Portugal 1 0.7%
13 Russia 1 0.7%
14 Sweden 1 0.7%
15 Taiwan 1 0.7%
16 Turkey 1 0.7%