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 156 56.3%
2 United States 62 22.4%
3 Germany 28 10.1%
4 Taiwan 7 2.5%
5 Singapore 6 2.2%
6 Norway 4 1.4%
7 Canada 4 1.4%
8 Malaysia 3 1.1%
9 Japan 2 0.7%
10 Finland 2 0.7%
11 United Kingdom 2 0.7%
12 Australia 1 0.4%