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 152 61.3%
2 United States 33 13.3%
3 Germany 25 10.1%
4 Taiwan 17 6.9%
5 Ireland 7 2.8%
6 Russia 3 1.2%
7 Singapore 3 1.2%
8 Hong Kong 2 0.8%
9 Canada 2 0.8%
10 Korea, Republic of 1 0.4%
11 Mauritius 1 0.4%
12 Moldova, Republic of 1 0.4%
13 Portugal 1 0.4%