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 338 49.6%
2 Netherlands 166 24.4%
3 United States 111 16.3%
4 Germany 44 6.5%
5 Canada 10 1.5%
6 France 3 0.4%
7 Australia 2 0.3%
8 Russia 2 0.3%
9 Sweden 2 0.3%
10 Singapore 1 0.1%
11 India 1 0.1%
12 Moldova, Republic of 1 0.1%