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 38 42.2%
2 Germany 10 11.1%
3 Netherlands 9 10%
4 United States 8 8.9%
5 Korea, Republic of 8 8.9%
6 Japan 4 4.4%
7 Papua New Guinea 3 3.3%
8 United Kingdom 2 2.2%
9 Austria 2 2.2%
10 Canada 1 1.1%
11 Iran, Islamic Republic of 1 1.1%
12 Kazakhstan 1 1.1%
13 Australia 1 1.1%
14 Singapore 1 1.1%
15 Norway 1 1.1%