BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 106 73.6%
2 China 13 9%
3 United States 8 5.6%
4 Canada 4 2.8%
5 Switzerland 3 2.1%
6 Australia 2 1.4%
7 Malaysia 2 1.4%
8 Mexico 2 1.4%
9 Norway 1 0.7%
10 Saudi Arabia 1 0.7%
11 France 1 0.7%
12 Germany 1 0.7%