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 United States 49 39.8%
2 China 40 32.5%
3 Germany 11 8.9%
4 Hong Kong 5 4.1%
5 Czech Republic 4 3.3%
6 Canada 4 3.3%
7 Taiwan 3 2.4%
8 Viet Nam 2 1.6%
9 France 1 0.8%
10 India 1 0.8%
11 Netherlands 1 0.8%
12 Portugal 1 0.8%
13 Russia 1 0.8%