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 149 59.1%
2 Germany 41 16.3%
3 United States 39 15.5%
4 Netherlands 6 2.4%
5 Malaysia 4 1.6%
6 Canada 3 1.2%
7 Taiwan 3 1.2%
8 Hong Kong 2 0.8%
9 India 1 0.4%
10 Japan 1 0.4%
11 Australia 1 0.4%
12 Mauritius 1 0.4%
13 Ukraine 1 0.4%