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 410 44.2%
2 China 196 21.1%
3 Netherlands 140 15.1%
4 Germany 66 7.1%
5 France 62 6.7%
6 Canada 17 1.8%
7 Hong Kong 12 1.3%
8 Portugal 7 0.8%
9 Taiwan 5 0.5%
10 4 0.4%
11 United Kingdom 3 0.3%
12 Singapore 2 0.2%
13 Spain 1 0.1%
14 Ukraine 1 0.1%
15 Czech Republic 1 0.1%
16 Russia 1 0.1%