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 China 52 40.6%
2 United States 31 24.2%
3 Germany 15 11.7%
4 Canada 9 7%
5 Taiwan 8 6.2%
6 Hong Kong 3 2.3%
7 Korea, Republic of 2 1.6%
8 Singapore 2 1.6%
9 Poland 2 1.6%
10 Portugal 1 0.8%
11 Russia 1 0.8%
12 Macao 1 0.8%
13 Ukraine 1 0.8%