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 56 39.7%
2 United States 53 37.6%
3 Germany 11 7.8%
4 Hong Kong 5 3.5%
5 Malaysia 5 3.5%
6 Canada 3 2.1%
7 Estonia 2 1.4%
8 France 1 0.7%
9 Australia 1 0.7%
10 Portugal 1 0.7%
11 Russia 1 0.7%
12 South Africa 1 0.7%
13 Japan 1 0.7%