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 United States 40 38.5%
2 China 30 28.8%
3 Canada 10 9.6%
4 Germany 9 8.7%
5 Japan 5 4.8%
6 Hong Kong 3 2.9%
7 United Kingdom 2 1.9%
8 Portugal 1 1%
9 Spain 1 1%
10 Taiwan 1 1%
11 Australia 1 1%
12 France 1 1%