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 177 57.8%
2 United States 66 21.6%
3 Germany 19 6.2%
4 Canada 16 5.2%
5 Netherlands 7 2.3%
6 Ireland 6 2%
7 Australia 4 1.3%
8 Austria 2 0.7%
9 Malaysia 2 0.7%
10 Russia 2 0.7%
11 Turkey 2 0.7%
12 Singapore 1 0.3%
13 Korea, Republic of 1 0.3%
14 India 1 0.3%