BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 220 38.9%
2 China 189 33.5%
3 Germany 57 10.1%
4 Netherlands 42 7.4%
5 France 22 3.9%
6 Hong Kong 11 1.9%
7 Portugal 8 1.4%
8 4 0.7%
9 Canada 3 0.5%
10 Korea, Republic of 2 0.4%
11 Brazil 2 0.4%
12 Singapore 2 0.4%
13 Sweden 1 0.2%
14 Ukraine 1 0.2%
15 Denmark 1 0.2%