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 306 56.1%
2 United States 94 17.2%
3 Canada 40 7.3%
4 Germany 37 6.8%
5 Netherlands 21 3.9%
6 Hong Kong 17 3.1%
7 Malaysia 4 0.7%
8 New Zealand 3 0.6%
9 Russia 3 0.6%
10 Macao 3 0.6%
11 Australia 3 0.6%
12 Brazil 3 0.6%
13 Iran, Islamic Republic of 2 0.4%
14 Japan 2 0.4%
15 Singapore 2 0.4%
16 Sweden 2 0.4%
17 Philippines 2 0.4%
18 Korea, Republic of 1 0.2%