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 150 53.8%
2 United States 59 21.1%
3 Germany 39 14%
4 Russia 7 2.5%
5 Singapore 4 1.4%
6 Australia 4 1.4%
7 Hong Kong 3 1.1%
8 Italy 3 1.1%
9 Japan 2 0.7%
10 Macao 2 0.7%
11 Malaysia 2 0.7%
12 Taiwan 2 0.7%
13 Ukraine 1 0.4%
14 Canada 1 0.4%