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 57 44.9%
2 United States 29 22.8%
3 Germany 13 10.2%
4 Canada 7 5.5%
5 Hong Kong 6 4.7%
6 Taiwan 3 2.4%
7 France 3 2.4%
8 Australia 2 1.6%
9 Korea, Republic of 2 1.6%
10 Netherlands 1 0.8%
11 Portugal 1 0.8%
12 Singapore 1 0.8%
13 United Kingdom 1 0.8%
14 Japan 1 0.8%