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 182 66.2%
2 Germany 35 12.7%
3 United States 28 10.2%
4 Canada 5 1.8%
5 Hong Kong 4 1.5%
6 Japan 4 1.5%
7 Netherlands 4 1.5%
8 Norway 2 0.7%
9 Russia 2 0.7%
10 Singapore 2 0.7%
11 Ukraine 2 0.7%
12 Uzbekistan 2 0.7%
13 France 2 0.7%
14 New Zealand 1 0.4%