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 68 40%
2 China 48 28.2%
3 Netherlands 18 10.6%
4 Canada 13 7.6%
5 Sweden 12 7.1%
6 Malaysia 4 2.4%
7 Singapore 2 1.2%
8 New Zealand 1 0.6%
9 Poland 1 0.6%
10 Czech Republic 1 0.6%
11 Germany 1 0.6%
12 India 1 0.6%