BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 86 62.8%
2 United States 17 12.4%
3 Germany 10 7.3%
4 France 6 4.4%
5 Malaysia 5 3.6%
6 Netherlands 3 2.2%
7 Lao People's Democratic Republic 3 2.2%
8 Japan 2 1.5%
9 Russia 2 1.5%
10 Taiwan 1 0.7%
11 Hong Kong 1 0.7%
12 Canada 1 0.7%