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 198 75.9%
2 United States 26 10%
3 Germany 8 3.1%
4 Netherlands 8 3.1%
5 Czech Republic 7 2.7%
6 Hong Kong 5 1.9%
7 Taiwan 2 0.8%
8 Thailand 1 0.4%
9 United Kingdom 1 0.4%
10 Portugal 1 0.4%
11 Russia 1 0.4%
12 Korea, Republic of 1 0.4%
13 France 1 0.4%
14 Canada 1 0.4%