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 194 60.4%
2 United States 48 15%
3 Germany 39 12.1%
4 Netherlands 22 6.9%
5 Hong Kong 6 1.9%
6 Macao 2 0.6%
7 Moldova, Republic of 2 0.6%
8 United Kingdom 2 0.6%
9 Australia 2 0.6%
10 Canada 1 0.3%
11 Russia 1 0.3%
12 Turkey 1 0.3%
13 Ukraine 1 0.3%