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 281 71.5%
2 United States 44 11.2%
3 Germany 35 8.9%
4 Canada 12 3.1%
5 Hong Kong 7 1.8%
6 Taiwan 4 1%
7 Malaysia 3 0.8%
8 Mexico 2 0.5%
9 Australia 2 0.5%
10 France 1 0.3%
11 India 1 0.3%
12 United Kingdom 1 0.3%