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 138 73%
2 United States 23 12.2%
3 Netherlands 11 5.8%
4 Germany 5 2.6%
5 Canada 3 1.6%
6 India 2 1.1%
7 Viet Nam 1 0.5%
8 Hong Kong 1 0.5%
9 Australia 1 0.5%
10 Brazil 1 0.5%
11 Singapore 1 0.5%
12 Taiwan 1 0.5%
13 United Kingdom 1 0.5%