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 170 60.1%
2 United States 46 16.3%
3 Germany 43 15.2%
4 Ireland 5 1.8%
5 Canada 3 1.1%
6 Russia 3 1.1%
7 Singapore 2 0.7%
8 Australia 2 0.7%
9 Malaysia 2 0.7%
10 Mauritius 2 0.7%
11 Netherlands 2 0.7%
12 United Kingdom 2 0.7%
13 Ukraine 1 0.4%