BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 98 61.6%
2 United States 18 11.3%
3 Germany 12 7.5%
4 France 8 5%
5 Netherlands 6 3.8%
6 Canada 4 2.5%
7 Hong Kong 3 1.9%
8 United Kingdom 3 1.9%
9 Singapore 2 1.3%
10 Japan 2 1.3%
11 Korea, Republic of 1 0.6%
12 Australia 1 0.6%
13 South Africa 1 0.6%