横向
1
Center of an atom or cell
4
Compound containing oxygen
5
Unit of heredity
纵向
2
Push or pull on an object
3
Basic unit of life
4
Gas essential for breathing
6
Curved glass that refracts light
7
Disturbance that transfers energy
Center of an atom or cell
Compound containing oxygen
Unit of heredity
Push or pull on an object
Basic unit of life
Gas essential for breathing
Curved glass that refracts light
Disturbance that transfers energy