The materials of solar cells are mainly materials.
A: conductor
B: insulator
C: semiconductor
D: --
A: conductor
B: insulator
C: semiconductor
D: --
举一反三
- 中国大学MOOC: The materials of solar cells are mainly materials.
- n the direct materials budget, the quantity of direct materials to be purchased is computed byadding direct materials required for production to A: desired ending direct materials. B: beginning direct materials. C: desired ending direct materials lessbeginning direct materials. D: beginning direct materials less desiredending direct materials.
- There are three common forms of "collocation or combination" of furniture materials, namely： A: collocation or combination of different natural materials. B: collocation or combination between natural materials and artificial materials。 C: collocation or combination of different artificial materials. D: collocation or combination of personalized materials.
- Building materials may be classified into three groups according to the purposes they are used for: structural materials, decoration materials and some special materials.
- 中国大学MOOC: These materials can include textbooks, _____5_____, reading materials, written assignments, or even test materials.