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 157 34.7%
2 China 130 28.7%
3 Germany 53 11.7%
4 Netherlands 35 7.7%
5 France 23 5.1%
6 Hong Kong 10 2.2%
7 Canada 8 1.8%
8 Portugal 7 1.5%
9 United Kingdom 6 1.3%
10 Taiwan 5 1.1%
11 5 1.1%
12 Ukraine 4 0.9%
13 Norway 3 0.7%
14 Belgium 2 0.4%
15 Japan 2 0.4%
16 Malaysia 1 0.2%
17 Australia 1 0.2%
18 Singapore 1 0.2%