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 201 60.7%
2 United States 49 14.8%
3 Germany 40 12.1%
4 Canada 17 5.1%
5 Hong Kong 6 1.8%
6 Singapore 4 1.2%
7 United Kingdom 3 0.9%
8 Malaysia 3 0.9%
9 India 2 0.6%
10 Italy 2 0.6%
11 Spain 2 0.6%
12 Norway 1 0.3%
13 Armenia 1 0.3%