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 18 31.6%
2 United States 14 24.6%
3 Germany 7 12.3%
4 Taiwan 5 8.8%
5 Netherlands 4 7%
6 Malaysia 3 5.3%
7 Canada 2 3.5%
8 Australia 1 1.8%
9 Singapore 1 1.8%
10 Hong Kong 1 1.8%
11 Japan 1 1.8%