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 United States 25 24.8%
2 China 24 23.8%
3 Netherlands 17 16.8%
4 Canada 12 11.9%
5 Malaysia 10 9.9%
6 Germany 4 4%
7 Hong Kong 3 3%
8 Lao People's Democratic Republic 2 2%
9 South Africa 2 2%
10 Congo 1 1%
11 Czech Republic 1 1%