横向
1
Smallest unit of an element
4
Unit of heredity
5
Icy body with a tail near the sun
7
Amplified beam of light
纵向
2
Disturbance that transfers energy
3
Push or pull on an object
4
Force that attracts objects together
6
Unit of electric potential
Smallest unit of an element
Unit of heredity
Icy body with a tail near the sun
Amplified beam of light
Disturbance that transfers energy
Push or pull on an object
Force that attracts objects together
Unit of electric potential