横向
1
Force that attracts objects together
3
Particle of light
5
Mass per unit volume
7
Second lightest element
纵向
1
Unit of heredity
2
Biological catalyst
4
Infectious microscopic agent
6
Gas form of a liquid
8
Preserved remains of ancient life
Force that attracts objects together
Particle of light
Mass per unit volume
Second lightest element
Unit of heredity
Biological catalyst
Infectious microscopic agent
Gas form of a liquid
Preserved remains of ancient life