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 235 62.2%
2 United States 69 18.3%
3 Germany 33 8.7%
4 Hong Kong 7 1.9%
5 Taiwan 7 1.9%
6 Australia 5 1.3%
7 Japan 4 1.1%
8 Malaysia 4 1.1%
9 New Zealand 2 0.5%
10 Korea, Republic of 2 0.5%
11 Ukraine 2 0.5%
12 2 0.5%
13 Canada 2 0.5%
14 India 2 0.5%
15 Brazil 1 0.3%
16 Singapore 1 0.3%