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 176 55%
2 United States 68 21.2%
3 Germany 35 10.9%
4 Canada 19 5.9%
5 Singapore 7 2.2%
6 Italy 4 1.2%
7 Australia 3 0.9%
8 Viet Nam 3 0.9%
9 Netherlands 2 0.6%
10 Hong Kong 1 0.3%
11 India 1 0.3%
12 United Kingdom 1 0.3%