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 53.3%
2 United States 72 21.7%
3 Germany 28 8.4%
4 Netherlands 23 6.9%
5 Canada 16 4.8%
6 Hong Kong 5 1.5%
7 Macao 2 0.6%
8 Australia 2 0.6%
9 Brazil 2 0.6%
10 Singapore 2 0.6%
11 Ukraine 1 0.3%
12 Russia 1 0.3%
13 Luxembourg 1 0.3%