BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 247 60.4%
2 United States 76 18.6%
3 China 44 10.8%
4 Germany 14 3.4%
5 France 13 3.2%
6 Norway 6 1.5%
7 India 2 0.5%
8 Canada 2 0.5%
9 Czech Republic 1 0.2%
10 Korea, Republic of 1 0.2%
11 Hong Kong 1 0.2%
12 Russia 1 0.2%
13 Ukraine 1 0.2%