按规律填空 one two three five _____ ______twenty--one

问题描述:

按规律填空 one two three five _____ ______twenty--one

eight, thirteen
1+2=3
2+3=5
3+5=8
5+8=13
8+13=21

应该填 eight 和 thirteen
1 2 3 5 8 13 21
1+2=3
2+3=5
3+5=8
5+8=13
13+8=21