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 198 62.5%
2 United States 61 19.2%
3 Germany 28 8.8%
4 Canada 11 3.5%
5 Hong Kong 4 1.3%
6 Malaysia 3 0.9%
7 Macao 2 0.6%
8 Russia 2 0.6%
9 Singapore 2 0.6%
10 Switzerland 2 0.6%
11 Ukraine 2 0.6%
12 Netherlands 1 0.3%
13 Belgium 1 0.3%