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 United States 79 57.7%
2 China 18 13.1%
3 Korea, Republic of 8 5.8%
4 Taiwan 8 5.8%
5 Malaysia 6 4.4%
6 Canada 5 3.6%
7 Japan 4 2.9%
8 Singapore 3 2.2%
9 Venezuela, Bolivarian Republic of 2 1.5%
10 Switzerland 1 0.7%
11 Germany 1 0.7%
12 Hong Kong 1 0.7%
13 Ireland 1 0.7%