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 211 55.4%
2 United States 60 15.7%
3 Canada 42 11%
4 Germany 35 9.2%
5 Hong Kong 7 1.8%
6 Singapore 6 1.6%
7 Netherlands 4 1%
8 Brazil 2 0.5%
9 Bulgaria 2 0.5%
10 Romania 2 0.5%
11 United Kingdom 2 0.5%
12 Russia 1 0.3%
13 Spain 1 0.3%
14 Tanzania, United Republic of 1 0.3%
15 New Zealand 1 0.3%
16 Japan 1 0.3%
17 Kazakhstan 1 0.3%
18 Luxembourg 1 0.3%
19 Malaysia 1 0.3%