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 151 55.7%
2 United States 42 15.5%
3 Germany 41 15.1%
4 Canada 5 1.8%
5 Russia 5 1.8%
6 Japan 4 1.5%
7 Italy 3 1.1%
8 Australia 3 1.1%
9 Macao 3 1.1%
10 Malaysia 2 0.7%
11 New Zealand 2 0.7%
12 Norway 2 0.7%
13 United Kingdom 2 0.7%
14 2 0.7%
15 Albania 2 0.7%
16 Lao People's Democratic Republic 2 0.7%