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 249 74.3%
2 Germany 36 10.7%
3 United States 29 8.7%
4 Singapore 10 3%
5 Ireland 4 1.2%
6 Malaysia 2 0.6%
7 Canada 2 0.6%
8 Russia 1 0.3%
9 Thailand 1 0.3%
10 Lao People's Democratic Republic 1 0.3%