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 201 56.8%
2 United States 64 18.1%
3 Germany 37 10.5%
4 Netherlands 28 7.9%
5 Hong Kong 10 2.8%
6 Canada 3 0.8%
7 France 2 0.6%
8 Japan 2 0.6%
9 Moldova, Republic of 2 0.6%
10 Sweden 2 0.6%
11 Australia 1 0.3%
12 Singapore 1 0.3%
13 Chile 1 0.3%