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 31 41.9%
2 Germany 15 20.3%
3 Australia 8 10.8%
4 United States 6 8.1%
5 Netherlands 6 8.1%
6 France 2 2.7%
7 Japan 2 2.7%
8 India 1 1.4%
9 Singapore 1 1.4%
10 Taiwan 1 1.4%
11 United Kingdom 1 1.4%