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 164 70.7%
2 United States 25 10.8%
3 Netherlands 18 7.8%
4 Germany 12 5.2%
5 Canada 3 1.3%
6 Australia 2 0.9%
7 Czech Republic 2 0.9%
8 France 2 0.9%
9 Singapore 2 0.9%
10 Hong Kong 1 0.4%
11 Japan 1 0.4%