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 67 51.1%
2 United States 21 16%
3 Netherlands 14 10.7%
4 Germany 11 8.4%
5 Canada 3 2.3%
6 Spain 3 2.3%
7 Norway 2 1.5%
8 Malaysia 2 1.5%
9 Japan 2 1.5%
10 Korea, Republic of 1 0.8%
11 Luxembourg 1 0.8%
12 Macao 1 0.8%
13 Hong Kong 1 0.8%
14 Taiwan 1 0.8%
15 Thailand 1 0.8%