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 188 52.2%
2 United States 74 20.6%
3 Germany 35 9.7%
4 Taiwan 25 6.9%
5 Hong Kong 10 2.8%
6 Canada 8 2.2%
7 Singapore 5 1.4%
8 South Africa 3 0.8%
9 Malaysia 3 0.8%
10 Belgium 3 0.8%
11 Brazil 2 0.6%
12 Japan 2 0.6%
13 Russia 1 0.3%
14 Egypt 1 0.3%