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 26 51%
2 United States 6 11.8%
3 Germany 5 9.8%
4 Hong Kong 3 5.9%
5 Romania 2 3.9%
6 Singapore 2 3.9%
7 Tajikistan 2 3.9%
8 United Kingdom 1 2%
9 Japan 1 2%
10 Macao 1 2%
11 Norway 1 2%
12 Australia 1 2%