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 143 55.9%
2 United States 69 27%
3 Netherlands 15 5.9%
4 Germany 8 3.1%
5 Hong Kong 8 3.1%
6 Korea, Republic of 4 1.6%
7 Taiwan 3 1.2%
8 Canada 2 0.8%
9 Ukraine 1 0.4%
10 United Kingdom 1 0.4%
11 Portugal 1 0.4%
12 Russia 1 0.4%