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 209 54.3%
2 United States 65 16.9%
3 Canada 57 14.8%
4 Germany 29 7.5%
5 Hong Kong 7 1.8%
6 Australia 5 1.3%
7 Singapore 4 1%
8 Uzbekistan 2 0.5%
9 Malaysia 2 0.5%
10 Japan 2 0.5%
11 Korea, Republic of 1 0.3%
12 Moldova, Republic of 1 0.3%
13 Netherlands 1 0.3%