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 United States 29 37.2%
2 China 15 19.2%
3 Algeria 7 9%
4 France 7 9%
5 Germany 4 5.1%
6 India 3 3.8%
7 Egypt 2 2.6%
8 Canada 1 1.3%
9 Viet Nam 1 1.3%
10 Iran, Islamic Republic of 1 1.3%
11 Korea, Republic of 1 1.3%
12 Morocco 1 1.3%
13 Netherlands 1 1.3%
14 Nigeria 1 1.3%
15 Norway 1 1.3%
16 Pakistan 1 1.3%
17 Tanzania, United Republic of 1 1.3%
18 Thailand 1 1.3%