BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 169 58.9%
2 United States 41 14.3%
3 Germany 40 13.9%
4 Canada 17 5.9%
5 Singapore 2 0.7%
6 Turkey 2 0.7%
7 Ukraine 2 0.7%
8 Hong Kong 2 0.7%
9 Australia 2 0.7%
10 Austria 2 0.7%
11 Brazil 1 0.3%
12 Czech Republic 1 0.3%
13 France 1 0.3%
14 India 1 0.3%
15 Malaysia 1 0.3%
16 Spain 1 0.3%
17 Thailand 1 0.3%
18 Uzbekistan 1 0.3%