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 72 52.6%
2 United States 26 19%
3 France 12 8.8%
4 Korea, Republic of 7 5.1%
5 Germany 6 4.4%
6 Hong Kong 3 2.2%
7 Canada 3 2.2%
8 Singapore 3 2.2%
9 Netherlands 2 1.5%
10 Australia 1 0.7%
11 India 1 0.7%
12 Switzerland 1 0.7%