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 19 41.3%
2 Germany 9 19.6%
3 United States 5 10.9%
4 Canada 2 4.3%
5 Hong Kong 2 4.3%
6 Japan 2 4.3%
7 Malaysia 2 4.3%
8 Singapore 2 4.3%
9 Spain 2 4.3%
10 Taiwan 1 2.2%