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 57.9%
2 United States 75 20.8%
3 Germany 41 11.4%
4 Canada 16 4.4%
5 Hong Kong 3 0.8%
6 India 2 0.6%
7 Japan 2 0.6%
8 Netherlands 2 0.6%
9 New Zealand 2 0.6%
10 Viet Nam 2 0.6%
11 Bulgaria 2 0.6%
12 Australia 1 0.3%
13 Taiwan 1 0.3%
14 Turkey 1 0.3%
15 Ukraine 1 0.3%
16 United Kingdom 1 0.3%