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 176 46.2%
2 United States 133 34.9%
3 Germany 31 8.1%
4 Taiwan 13 3.4%
5 Hong Kong 7 1.8%
6 Singapore 6 1.6%
7 Japan 5 1.3%
8 Australia 5 1.3%
9 Russia 2 0.5%
10 Estonia 1 0.3%
11 Korea, Republic of 1 0.3%
12 Turkey 1 0.3%