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 150 48.4%
2 United States 61 19.7%
3 Canada 29 9.4%
4 Germany 29 9.4%
5 Netherlands 18 5.8%
6 Singapore 16 5.2%
7 Sweden 2 0.6%
8 Hong Kong 2 0.6%
9 Moldova, Republic of 1 0.3%
10 France 1 0.3%
11 Taiwan 1 0.3%