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 161 52.8%
2 United States 64 21%
3 Germany 46 15.1%
4 Canada 15 4.9%
5 Japan 5 1.6%
6 Australia 4 1.3%
7 France 3 1%
8 Ukraine 2 0.7%
9 Netherlands 2 0.7%
10 Singapore 1 0.3%
11 Luxembourg 1 0.3%
12 Congo, The Democratic Republic of The 1 0.3%