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 193 71.2%
2 United States 48 17.7%
3 Australia 6 2.2%
4 Germany 5 1.8%
5 Japan 5 1.8%
6 Canada 4 1.5%
7 Taiwan 4 1.5%
8 Senegal 2 0.7%
9 Singapore 1 0.4%
10 Korea, Republic of 1 0.4%
11 Hong Kong 1 0.4%
12 United Kingdom 1 0.4%