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 68 47.6%
2 United States 38 26.6%
3 Canada 9 6.3%
4 Korea, Republic of 8 5.6%
5 Hong Kong 6 4.2%
6 Singapore 5 3.5%
7 Netherlands 3 2.1%
8 Malaysia 2 1.4%
9 Germany 2 1.4%
10 France 1 0.7%
11 Japan 1 0.7%