BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 40 32.5%
2 United States 28 22.8%
3 Netherlands 21 17.1%
4 Germany 13 10.6%
5 Canada 8 6.5%
6 Hong Kong 6 4.9%
7 United Kingdom 2 1.6%
8 Malaysia 1 0.8%
9 Mexico 1 0.8%
10 Portugal 1 0.8%
11 Singapore 1 0.8%
12 Ukraine 1 0.8%