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 187 53.7%
2 United States 89 25.6%
3 Germany 36 10.3%
4 Korea, Republic of 10 2.9%
5 Canada 6 1.7%
6 Hong Kong 5 1.4%
7 Singapore 5 1.4%
8 Russia 3 0.9%
9 United Kingdom 2 0.6%
10 Japan 2 0.6%
11 Australia 2 0.6%
12 Malaysia 1 0.3%