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 183 70.4%
2 United States 24 9.2%
3 Germany 23 8.8%
4 Hong Kong 7 2.7%
5 Korea, Republic of 4 1.5%
6 Australia 4 1.5%
7 Taiwan 4 1.5%
8 Brazil 2 0.8%
9 Malaysia 2 0.8%
10 Netherlands 2 0.8%
11 Russia 2 0.8%
12 United Arab Emirates 2 0.8%
13 Ukraine 1 0.4%