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 59 54.1%
2 Germany 14 12.8%
3 United States 11 10.1%
4 Taiwan 5 4.6%
5 Netherlands 4 3.7%
6 Hong Kong 4 3.7%
7 Australia 3 2.8%
8 Japan 2 1.8%
9 Malaysia 2 1.8%
10 Brazil 1 0.9%
11 France 1 0.9%
12 Russia 1 0.9%
13 Singapore 1 0.9%
14 Spain 1 0.9%