BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 135 53.8%
2 China 72 28.7%
3 Germany 14 5.6%
4 Hong Kong 12 4.8%
5 Canada 4 1.6%
6 Australia 2 0.8%
7 Czech Republic 2 0.8%
8 United Kingdom 2 0.8%
9 Singapore 2 0.8%
10 Taiwan 2 0.8%
11 Ukraine 1 0.4%
12 Korea, Republic of 1 0.4%
13 Macao 1 0.4%
14 Portugal 1 0.4%