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 34 39.1%
2 China 28 32.2%
3 Germany 6 6.9%
4 Hong Kong 4 4.6%
5 Russia 3 3.4%
6 Singapore 3 3.4%
7 Switzerland 3 3.4%
8 Spain 2 2.3%
9 Malaysia 2 2.3%
10 Taiwan 1 1.1%
11 Australia 1 1.1%