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 200 41.4%
2 China 131 27.1%
3 Netherlands 54 11.2%
4 Germany 43 8.9%
5 France 18 3.7%
6 Hong Kong 9 1.9%
7 Portugal 7 1.4%
8 Canada 5 1%
9 4 0.8%
10 Taiwan 4 0.8%
11 Ukraine 3 0.6%
12 Norway 3 0.6%
13 Russia 2 0.4%