横向
1
Molten rock beneath Earth surface
3
Unit of electric potential
5
Substance with pH below 7
6
Center of an atom or cell
8
Reddish electrical conductor
纵向
2
Element found in all living things
4
Chemical element in table salt
7
Biological catalyst
Molten rock beneath Earth surface
Unit of electric potential
Substance with pH below 7
Center of an atom or cell
Reddish electrical conductor
Element found in all living things
Chemical element in table salt
Biological catalyst