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 143 54.6%
2 United States 62 23.7%
3 Germany 27 10.3%
4 Netherlands 13 5%
5 France 4 1.5%
6 Japan 3 1.1%
7 Taiwan 3 1.1%
8 Australia 2 0.8%
9 Russia 2 0.8%
10 Hong Kong 2 0.8%
11 Turkey 1 0.4%