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 49 42.6%
2 United States 25 21.7%
3 Germany 14 12.2%
4 France 6 5.2%
5 Canada 4 3.5%
6 Hong Kong 4 3.5%
7 Ukraine 4 3.5%
8 Czech Republic 3 2.6%
9 Japan 2 1.7%
10 United Kingdom 2 1.7%
11 Korea, Republic of 1 0.9%
12 India 1 0.9%