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 48 57.1%
2 United States 12 14.3%
3 Germany 7 8.3%
4 Canada 3 3.6%
5 Russia 3 3.6%
6 Norway 2 2.4%
7 Japan 2 2.4%
8 Jordan 1 1.2%
9 Macao 1 1.2%
10 Australia 1 1.2%
11 Hong Kong 1 1.2%
12 Italy 1 1.2%
13 Singapore 1 1.2%
14 Taiwan 1 1.2%