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 56 57.1%
2 United States 12 12.2%
3 Netherlands 11 11.2%
4 Canada 7 7.1%
5 Germany 3 3.1%
6 Hong Kong 2 2%
7 Japan 2 2%
8 Australia 2 2%
9 Singapore 2 2%
10 Macao 1 1%