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 195 53.3%
2 United States 100 27.3%
3 Germany 42 11.5%
4 Taiwan 8 2.2%
5 Canada 6 1.6%
6 Hong Kong 5 1.4%
7 Ireland 2 0.5%
8 Singapore 2 0.5%
9 Australia 2 0.5%
10 Brazil 1 0.3%
11 Malaysia 1 0.3%
12 Netherlands 1 0.3%
13 Ukraine 1 0.3%