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 63 45.7%
2 United States 26 18.8%
3 Netherlands 19 13.8%
4 Germany 11 8%
5 Malaysia 5 3.6%
6 France 3 2.2%
7 Canada 3 2.2%
8 Brazil 2 1.4%
9 Switzerland 2 1.4%
10 Taiwan 1 0.7%
11 Argentina 1 0.7%
12 Australia 1 0.7%
13 Hong Kong 1 0.7%