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 191 67.5%
2 United States 40 14.1%
3 Germany 15 5.3%
4 Hong Kong 9 3.2%
5 Spain 6 2.1%
6 Russia 5 1.8%
7 3 1.1%
8 Turkey 3 1.1%
9 Sweden 2 0.7%
10 Venezuela, Bolivarian Republic of 2 0.7%
11 Viet Nam 2 0.7%
12 Canada 2 0.7%
13 Singapore 2 0.7%
14 Macao 1 0.4%