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 99 56.2%
2 United States 42 23.9%
3 Germany 14 8%
4 Hong Kong 5 2.8%
5 Norway 4 2.3%
6 Taiwan 3 1.7%
7 Canada 3 1.7%
8 Ukraine 1 0.6%
9 United Kingdom 1 0.6%
10 Portugal 1 0.6%
11 Russia 1 0.6%
12 Malaysia 1 0.6%
13 Netherlands 1 0.6%