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 58 41.4%
2 United States 48 34.3%
3 Germany 9 6.4%
4 Canada 8 5.7%
5 Taiwan 6 4.3%
6 Hong Kong 5 3.6%
7 Netherlands 2 1.4%
8 Portugal 1 0.7%
9 Australia 1 0.7%
10 Malaysia 1 0.7%
11 United Kingdom 1 0.7%