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 44.7%
2 United States 40 24.8%
3 Netherlands 11 6.8%
4 Korea, Republic of 8 5%
5 Canada 6 3.7%
6 Malaysia 5 3.1%
7 Germany 4 2.5%
8 Singapore 4 2.5%
9 France 3 1.9%
10 Finland 2 1.2%
11 Japan 2 1.2%
12 Spain 1 0.6%
13 Switzerland 1 0.6%
14 New Zealand 1 0.6%
15 Hong Kong 1 0.6%