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 232 57.9%
2 United States 61 15.2%
3 Germany 35 8.7%
4 Netherlands 29 7.2%
5 Canada 25 6.2%
6 Taiwan 3 0.7%
7 Turkey 3 0.7%
8 Brazil 3 0.7%
9 Australia 2 0.5%
10 France 2 0.5%
11 Korea, Republic of 2 0.5%
12 Switzerland 2 0.5%
13 Portugal 1 0.2%
14 Singapore 1 0.2%