BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 64 38.1%
2 United States 40 23.8%
3 Netherlands 19 11.3%
4 Germany 15 8.9%
5 Korea, Republic of 9 5.4%
6 Senegal 8 4.8%
7 France 6 3.6%
8 Russia 3 1.8%
9 Mauritius 1 0.6%
10 Sweden 1 0.6%
11 Norway 1 0.6%
12 Portugal 1 0.6%