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 47 41.2%
2 United States 35 30.7%
3 Germany 6 5.3%
4 Portugal 6 5.3%
5 Malaysia 5 4.4%
6 Hong Kong 5 4.4%
7 Korea, Republic of 3 2.6%
8 Senegal 3 2.6%
9 France 2 1.8%
10 Japan 1 0.9%
11 Singapore 1 0.9%