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 254 53.7%
2 United States 152 32.1%
3 Germany 30 6.3%
4 Canada 14 3%
5 Hong Kong 7 1.5%
6 Singapore 4 0.8%
7 Taiwan 2 0.4%
8 Russia 2 0.4%
9 Malaysia 2 0.4%
10 Finland 2 0.4%
11 Brazil 2 0.4%
12 Australia 1 0.2%
13 Norway 1 0.2%