In sand casting, the use of a Core in the Mold Cavity provides（ ）
A: external features
B: internal features
C: internal external features
D: none of the above
A: external features
B: internal features
C: internal external features
D: none of the above
举一反三
- Casting can create complex part geometries with （ ） A: external and internal shapes B: only internal shapes C: only external shapes D: none of the above
- Two incomplete statements follow.<br/>Which words correctly complete each statement? A: 1 External, 2 Internal B: 1 Internal, 2 Internal C: 1 External, 2 External D: 1 Internal, 2 External
- When two two-terminal networks are equivalent, they are equivalent to ( ). A: external circuit B: internal circuit C: external circuit and internal circuit D: neither external circuit nor internal circuit
- Which of the following muscles contract(s) during quiet expiration A: Diaphragm B: Internal intercostals C: External intercostals D: None of the above E: All of the above
- Taine’s theory enlightened people to pay close attention to _____ factors of art in his time. A: external B: internal C: structural D: None of the above