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 14 28%
2 United States 12 24%
3 Netherlands 10 20%
4 Hong Kong 5 10%
5 New Zealand 2 4%
6 Russia 2 4%
7 Singapore 2 4%
8 United Kingdom 1 2%
9 Korea, Republic of 1 2%
10 Canada 1 2%