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 74 47.1%
2 United States 43 27.4%
3 Netherlands 16 10.2%
4 France 4 2.5%
5 Germany 3 1.9%
6 Poland 3 1.9%
7 United Kingdom 3 1.9%
8 Brazil 2 1.3%
9 Japan 2 1.3%
10 Malaysia 2 1.3%
11 Venezuela, Bolivarian Republic of 2 1.3%
12 Romania 1 0.6%
13 Sweden 1 0.6%
14 Hong Kong 1 0.6%