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 67 48.2%
2 United States 35 25.2%
3 Germany 15 10.8%
4 Canada 6 4.3%
5 Hong Kong 4 2.9%
6 Taiwan 4 2.9%
7 Czech Republic 2 1.4%
8 Ukraine 1 0.7%
9 Ireland 1 0.7%
10 Israel 1 0.7%
11 Malaysia 1 0.7%
12 Moldova, Republic of 1 0.7%
13 Portugal 1 0.7%