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 United States 28 29.2%
2 China 18 18.8%
3 Germany 12 12.5%
4 Taiwan 10 10.4%
5 Netherlands 7 7.3%
6 Belarus 4 4.2%
7 Singapore 3 3.1%
8 Russia 2 2.1%
9 Hong Kong 2 2.1%
10 India 2 2.1%
11 Japan 2 2.1%
12 Malaysia 2 2.1%
13 Canada 1 1%
14 New Zealand 1 1%
15 Australia 1 1%
16 Viet Nam 1 1%