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 158 40.8%
2 United States 94 24.3%
3 Germany 35 9%
4 Canada 30 7.8%
5 Netherlands 20 5.2%
6 Hong Kong 13 3.4%
7 Malaysia 12 3.1%
8 Korea, Republic of 8 2.1%
9 Romania 5 1.3%
10 New Zealand 2 0.5%
11 Norway 2 0.5%
12 Ukraine 2 0.5%
13 Macao 2 0.5%
14 Italy 2 0.5%
15 Singapore 1 0.3%
16 Taiwan 1 0.3%