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 67 46.5%
2 China 33 22.9%
3 Netherlands 21 14.6%
4 Germany 6 4.2%
5 Singapore 4 2.8%
6 Japan 3 2.1%
7 Malaysia 2 1.4%
8 Hong Kong 2 1.4%
9 Canada 2 1.4%
10 Ukraine 2 1.4%
11 Australia 1 0.7%
12 France 1 0.7%