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 167 48%
2 United States 120 34.5%
3 Germany 32 9.2%
4 Taiwan 6 1.7%
5 Malaysia 3 0.9%
6 Russia 3 0.9%
7 Singapore 3 0.9%
8 Korea, Republic of 3 0.9%
9 Macao 2 0.6%
10 Australia 2 0.6%
11 Canada 2 0.6%
12 Japan 2 0.6%
13 United Kingdom 1 0.3%
14 Czech Republic 1 0.3%
15 Hong Kong 1 0.3%