BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 147 52.1%
2 United States 54 19.1%
3 Hong Kong 19 6.7%
4 Taiwan 15 5.3%
5 Germany 11 3.9%
6 Malaysia 10 3.5%
7 United Kingdom 5 1.8%
8 Iran, Islamic Republic of 4 1.4%
9 Japan 3 1.1%
10 Korea, Republic of 3 1.1%
11 India 3 1.1%
12 Canada 3 1.1%
13 Singapore 3 1.1%
14 Ukraine 1 0.4%
15 Portugal 1 0.4%