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 31.1%
2 United States 8 17.8%
3 Germany 5 11.1%
4 Japan 4 8.9%
5 Korea, Republic of 3 6.7%
6 Malaysia 2 4.4%
7 Netherlands 2 4.4%
8 Romania 2 4.4%
9 Singapore 2 4.4%
10 Taiwan 1 2.2%
11 Hong Kong 1 2.2%
12 1 2.2%