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 195 46.7%
2 United States 131 31.3%
3 Germany 29 6.9%
4 Canada 29 6.9%
5 Hong Kong 16 3.8%
6 Singapore 5 1.2%
7 United Kingdom 3 0.7%
8 Russia 3 0.7%
9 Luxembourg 2 0.5%
10 Netherlands 2 0.5%
11 Philippines 1 0.2%
12 Australia 1 0.2%
13 Moldova, Republic of 1 0.2%