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 205 59.1%
2 United States 82 23.6%
3 Germany 31 8.9%
4 Taiwan 8 2.3%
5 Malaysia 5 1.4%
6 Russia 4 1.2%
7 Korea, Republic of 4 1.2%
8 Australia 3 0.9%
9 Japan 2 0.6%
10 Hong Kong 1 0.3%
11 Canada 1 0.3%
12 France 1 0.3%