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 209 61.1%
2 United States 52 15.2%
3 Germany 44 12.9%
4 Canada 11 3.2%
5 Taiwan 5 1.5%
6 Macao 4 1.2%
7 Kazakhstan 3 0.9%
8 Russia 2 0.6%
9 Singapore 2 0.6%
10 Hong Kong 2 0.6%
11 Czech Republic 2 0.6%
12 France 2 0.6%
13 Japan 1 0.3%
14 Malaysia 1 0.3%
15 Norway 1 0.3%
16 Poland 1 0.3%