横向
1
Ball of burning gas in space
3
Unit of energy
4
Unit of force
6
Reddish electrical conductor
7
Compound containing oxygen
9
Icy body with a tail near the sun
10
Measure of matter in an object
纵向
2
Element found in all living things
4
Center of an atom or cell
5
Tissue that contracts for movement
8
Group of similar cells