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 210 57.2%
2 United States 59 16.1%
3 Germany 35 9.5%
4 Netherlands 29 7.9%
5 Spain 9 2.5%
6 Hong Kong 8 2.2%
7 Japan 5 1.4%
8 Malaysia 3 0.8%
9 Switzerland 3 0.8%
10 Australia 2 0.5%
11 Russia 2 0.5%
12 India 1 0.3%
13 Ireland 1 0.3%