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 123 53.7%
2 United States 66 28.8%
3 Netherlands 13 5.7%
4 Korea, Republic of 11 4.8%
5 Singapore 7 3.1%
6 Hong Kong 3 1.3%
7 Taiwan 2 0.9%
8 Ukraine 1 0.4%
9 Russia 1 0.4%
10 Australia 1 0.4%
11 Canada 1 0.4%