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 209 55.7%
2 United States 101 26.9%
3 Germany 28 7.5%
4 Canada 13 3.5%
5 South Africa 5 1.3%
6 Hong Kong 5 1.3%
7 Australia 3 0.8%
8 Norway 2 0.5%
9 Italy 2 0.5%
10 Japan 1 0.3%
11 Macao 1 0.3%
12 Mauritius 1 0.3%
13 Netherlands 1 0.3%
14 Russia 1 0.3%
15 Taiwan 1 0.3%
16 Turkey 1 0.3%