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 44 36.7%
2 China 41 34.2%
3 Germany 11 9.2%
4 Czech Republic 8 6.7%
5 France 4 3.3%
6 Canada 4 3.3%
7 Malaysia 2 1.7%
8 Netherlands 1 0.8%
9 New Zealand 1 0.8%
10 Singapore 1 0.8%
11 United Kingdom 1 0.8%
12 Hong Kong 1 0.8%
13 Japan 1 0.8%