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 19 42.2%
2 United States 8 17.8%
3 Germany 6 13.3%
4 Australia 3 6.7%
5 Switzerland 2 4.4%
6 Hong Kong 2 4.4%
7 Japan 2 4.4%
8 Malaysia 1 2.2%
9 Taiwan 1 2.2%
10 Brazil 1 2.2%