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 325 57.3%
2 United States 161 28.4%
3 Germany 27 4.8%
4 Singapore 15 2.6%
5 Canada 13 2.3%
6 Hong Kong 8 1.4%
7 Sweden 4 0.7%
8 Australia 3 0.5%
9 France 2 0.4%
10 South Africa 2 0.4%
11 Netherlands 2 0.4%
12 New Zealand 1 0.2%
13 Italy 1 0.2%
14 Japan 1 0.2%
15 Korea, Republic of 1 0.2%
16 Malaysia 1 0.2%