The micro needle recorded in The Internal Medicine Canon of Huang Di, can only be made of ( ).
A: cooper
B: stone
C: bian stone
D: iron
A: cooper
B: stone
C: bian stone
D: iron
举一反三
- In ancient time，there was no iron casting，so the needles were made of ______. A: stone B: tree C: iron D: mental
- The record that there were four kinds of medical accidents if apply the Bian Stone incorrectly was in the ancient book A:
- Iron replaced stone and timber in the building of bridges because iron was considered ______. A: more beautiful B: new and modern C: much stronger D: easier to transport
- The speaker states that the Stone Age was so named because ______. A: it was very durable B: the tools and weapons were made of stone C: there was little vegetation D: the people lived in caves
- The plan was to construct a church made of brick and stone on an acre of land.