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 61 56%
2 United States 20 18.3%
3 Netherlands 10 9.2%
4 Korea, Republic of 5 4.6%
5 Singapore 4 3.7%
6 Sweden 2 1.8%
7 Turkey 2 1.8%
8 Brazil 2 1.8%
9 Germany 2 1.8%
10 Hong Kong 1 0.9%