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 United States 31 34.4%
2 China 16 17.8%
3 Germany 13 14.4%
4 Indonesia 8 8.9%
5 Portugal 5 5.6%
6 Korea, Republic of 4 4.4%
7 France 3 3.3%
8 Netherlands 3 3.3%
9 Nepal 2 2.2%
10 Kazakhstan 2 2.2%
11 Hong Kong 1 1.1%
12 Canada 1 1.1%
13 Russia 1 1.1%