横向
1
Second lightest element
4
Unit of heredity
5
Unit of energy
7
Substance with pH above 7
纵向
2
Infectious microscopic agent
3
Our home planet
6
Tissue that contracts for movement
8
Glass that splits light into spectrum
Second lightest element
Unit of heredity
Unit of energy
Substance with pH above 7
Infectious microscopic agent
Our home planet
Tissue that contracts for movement
Glass that splits light into spectrum