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 312 39.4%
2 China 237 29.9%
3 Netherlands 86 10.9%
4 Germany 63 8%
5 France 43 5.4%
6 Canada 17 2.1%
7 Hong Kong 12 1.5%
8 Portugal 7 0.9%
9 6 0.8%
10 Ukraine 3 0.4%
11 Singapore 3 0.4%
12 Turkey 2 0.3%
13 Russia 1 0.1%