Anew type ________.
A: is a subclass
B: can be derived from an existing type
C: can’t be called a derived type
D: inherits all features of existing type and has additional features
A: is a subclass
B: can be derived from an existing type
C: can’t be called a derived type
D: inherits all features of existing type and has additional features
举一反三
- In programming languages, an abstract type is a type in a nominative type system that can be instantiated directly; a type that is not abstract – which can be instantiated – is called a concrete type.
- In programming languages, an abstract type is a type in a nominative type system that can be instantiated directly; a type that is not abstract – which can be instantiated – is called a concrete type. A: 正确 B: 错误
- One of the parents is type A and the other is type B. the possible blood type of their children is A: It can only be type AB B: It can only be type A or type B C: It can only be type A, B and AB D: Type A, B, AB, O E: It can only be type AB or type O
- We can called the first type of ambiguity as _____.
- Outlines can be derived most easily from __________.