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 31 38.8%
2 United States 13 16.2%
3 Canada 6 7.5%
4 Singapore 6 7.5%
5 Germany 6 7.5%
6 Japan 5 6.2%
7 Korea, Republic of 3 3.8%
8 Netherlands 3 3.8%
9 France 2 2.5%
10 Australia 2 2.5%
11 Austria 1 1.2%
12 Malaysia 1 1.2%
13 Taiwan 1 1.2%