横向
1
Icy body with a tail near the sun
5
Compound containing oxygen
6
Measure of matter in an object
7
Magnetic metallic element
9
Biological catalyst
10
Smallest unit of an element
纵向
2
Naturally occurring inorganic solid
3
Tissue that contracts for movement
4
Group of similar cells
8
Gas form of a liquid
11
Gas essential for breathing