单项选择题

案例分析题

Structured programming practices () rise to Pascal,in which constructs were introduced to make programs more readable and better () . C provided a combination of assembly language and high-level Structure to create a general-purpose language that could be used from system to () programming. Next came object orientation,which is () of a methodology and design philosophy than a language issue.This is () by the addition of so-called OO extensions to current languages,such as C.

in which constructs were introduced to make programs more readable and better ()

A.structure
B.structured
C.constructs
D.structures