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 141 41.8%
2 United States 109 32.3%
3 Germany 36 10.7%
4 Netherlands 18 5.3%
5 Kazakhstan 13 3.9%
6 Australia 4 1.2%
7 New Zealand 4 1.2%
8 Canada 4 1.2%
9 Hong Kong 2 0.6%
10 Italy 2 0.6%
11 Cambodia 1 0.3%
12 Korea, Republic of 1 0.3%
13 Switzerland 1 0.3%
14 Taiwan 1 0.3%