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 23 46.9%
2 Germany 9 18.4%
3 Singapore 3 6.1%
4 United States 3 6.1%
5 Hong Kong 2 4.1%
6 Italy 2 4.1%
7 Malaysia 2 4.1%
8 Moldova, Republic of 1 2%
9 Pakistan 1 2%
10 Korea, Republic of 1 2%
11 Ghana 1 2%
12 Dominican Republic 1 2%