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 168 60.4%
2 United States 49 17.6%
3 Germany 36 12.9%
4 Netherlands 4 1.4%
5 Russia 4 1.4%
6 Singapore 2 0.7%
7 Taiwan 2 0.7%
8 Malaysia 2 0.7%
9 New Zealand 2 0.7%
10 Hong Kong 2 0.7%
11 Australia 2 0.7%
12 Canada 2 0.7%
13 Guatemala 1 0.4%
14 India 1 0.4%
15 United Kingdom 1 0.4%