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 289 63.7%
2 United States 65 14.3%
3 Germany 35 7.7%
4 Taiwan 21 4.6%
5 Japan 13 2.9%
6 Hong Kong 12 2.6%
7 Netherlands 7 1.5%
8 Singapore 4 0.9%
9 Korea, Republic of 3 0.7%
10 Malaysia 2 0.4%
11 Moldova, Republic of 1 0.2%
12 Russia 1 0.2%
13 Australia 1 0.2%