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 45 58.4%
2 United States 8 10.4%
3 Germany 7 9.1%
4 Netherlands 6 7.8%
5 Singapore 3 3.9%
6 Australia 3 3.9%
7 Canada 2 2.6%
8 Taiwan 1 1.3%
9 Hong Kong 1 1.3%
10 Malaysia 1 1.3%