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 141 50.9%
2 United States 63 22.7%
3 Germany 40 14.4%
4 Canada 15 5.4%
5 Malaysia 4 1.4%
6 Hong Kong 3 1.1%
7 Korea, Republic of 3 1.1%
8 Macao 2 0.7%
9 India 2 0.7%
10 France 1 0.4%
11 Norway 1 0.4%
12 Singapore 1 0.4%
13 United Kingdom 1 0.4%