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 358 83.8%
2 United States 31 7.3%
3 Germany 14 3.3%
4 Hong Kong 9 2.1%
5 Australia 4 0.9%
6 United Kingdom 3 0.7%
7 Turkey 2 0.5%
8 1 0.2%
9 Belgium 1 0.2%
10 India 1 0.2%
11 Iran, Islamic Republic of 1 0.2%
12 Portugal 1 0.2%
13 Russia 1 0.2%