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 22 32.4%
2 United States 19 27.9%
3 Canada 6 8.8%
4 Korea, Republic of 5 7.4%
5 Hong Kong 3 4.4%
6 Taiwan 3 4.4%
7 Ukraine 2 2.9%
8 France 2 2.9%
9 Malaysia 2 2.9%
10 Netherlands 2 2.9%
11 New Zealand 1 1.5%
12 United Kingdom 1 1.5%