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 China 259 43.8%
2 United States 184 31.1%
3 Germany 41 6.9%
4 Netherlands 39 6.6%
5 France 22 3.7%
6 Hong Kong 10 1.7%
7 Canada 8 1.4%
8 Portugal 7 1.2%
9 United Kingdom 5 0.8%
10 4 0.7%
11 Viet Nam 3 0.5%
12 Norway 3 0.5%
13 Russia 1 0.2%
14 Singapore 1 0.2%
15 Finland 1 0.2%
16 Italy 1 0.2%
17 Japan 1 0.2%
18 Korea, Republic of 1 0.2%