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 251 54.7%
2 United States 128 27.9%
3 Germany 36 7.8%
4 Canada 16 3.5%
5 Singapore 6 1.3%
6 Hong Kong 6 1.3%
7 Japan 4 0.9%
8 Netherlands 3 0.7%
9 United Kingdom 3 0.7%
10 Malaysia 2 0.4%
11 Taiwan 2 0.4%
12 Australia 2 0.4%