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 41 51.9%
2 Germany 9 11.4%
3 Canada 7 8.9%
4 United States 7 8.9%
5 United Kingdom 3 3.8%
6 Iran, Islamic Republic of 3 3.8%
7 Malaysia 3 3.8%
8 Australia 2 2.5%
9 France 1 1.3%
10 Mauritius 1 1.3%
11 Netherlands 1 1.3%
12 Japan 1 1.3%