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 73 41.2%
2 United States 40 22.6%
3 Netherlands 21 11.9%
4 Singapore 10 5.6%
5 Korea, Republic of 9 5.1%
6 Germany 7 4%
7 Japan 4 2.3%
8 Canada 4 2.3%
9 Macao 3 1.7%
10 Czech Republic 2 1.1%
11 France 1 0.6%
12 Australia 1 0.6%
13 Bulgaria 1 0.6%
14 Taiwan 1 0.6%