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 700 59.5%
2 United States 156 13.3%
3 Netherlands 151 12.8%
4 France 77 6.5%
5 Germany 45 3.8%
6 Canada 22 1.9%
7 Korea, Republic of 6 0.5%
8 India 5 0.4%
9 Viet Nam 4 0.3%
10 Hong Kong 3 0.3%
11 Australia 2 0.2%
12 Russia 2 0.2%
13 Sweden 2 0.2%
14 Ukraine 1 0.1%
15 Denmark 1 0.1%