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 225 63.9%
2 United States 52 14.8%
3 Germany 40 11.4%
4 Taiwan 7 2%
5 Russia 5 1.4%
6 Canada 3 0.9%
7 Korea, Republic of 3 0.9%
8 Japan 2 0.6%
9 Kazakhstan 2 0.6%
10 Singapore 2 0.6%
11 Sweden 2 0.6%
12 Thailand 2 0.6%
13 United Kingdom 2 0.6%
14 Norway 2 0.6%
15 Mauritius 1 0.3%
16 Australia 1 0.3%
17 Hong Kong 1 0.3%