横向
1
Push or pull on an object
2
Positive particle in nucleus
3
Smallest unit of an element
5
Unit of electric potential
7
Unit of heredity
纵向
2
Particle of light
4
Icy body with a tail near the sun
6
Nerve cell in the brain
Push or pull on an object
Positive particle in nucleus
Smallest unit of an element
Unit of electric potential
Unit of heredity
Particle of light
Icy body with a tail near the sun
Nerve cell in the brain