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 134 43.4%
2 United States 95 30.7%
3 Germany 27 8.7%
4 Hong Kong 19 6.1%
5 Canada 8 2.6%
6 Japan 7 2.3%
7 Russia 4 1.3%
8 Italy 4 1.3%
9 Australia 2 0.6%
10 India 2 0.6%
11 Chile 2 0.6%
12 France 2 0.6%
13 Singapore 2 0.6%
14 Kazakhstan 1 0.3%