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 168 37.7%
2 United States 164 36.8%
3 Germany 35 7.8%
4 Hong Kong 32 7.2%
5 Taiwan 18 4%
6 Canada 9 2%
7 Russia 5 1.1%
8 France 4 0.9%
9 Australia 3 0.7%
10 Japan 3 0.7%
11 Singapore 2 0.4%
12 Malaysia 2 0.4%
13 Kazakhstan 1 0.2%