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 257 68.4%
2 United States 57 15.2%
3 Germany 27 7.2%
4 Australia 7 1.9%
5 Japan 5 1.3%
6 Singapore 4 1.1%
7 Ukraine 3 0.8%
8 Hong Kong 3 0.8%
9 Italy 3 0.8%
10 Brazil 2 0.5%
11 United Kingdom 2 0.5%
12 Spain 2 0.5%
13 Taiwan 2 0.5%
14 Moldova, Republic of 1 0.3%
15 Russia 1 0.3%