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 44 41.1%
2 United States 21 19.6%
3 Hong Kong 18 16.8%
4 Germany 6 5.6%
5 Netherlands 5 4.7%
6 Taiwan 4 3.7%
7 Canada 2 1.9%
8 United Kingdom 1 0.9%
9 Portugal 1 0.9%
10 1 0.9%
11 Australia 1 0.9%
12 Iran, Islamic Republic of 1 0.9%
13 Korea, Republic of 1 0.9%
14 Malaysia 1 0.9%