单选题 Although it was written over one hundred years ago, it is still the______ history text in many schools.

A、 typical
B、 customary
C、 practical
D、 classic

【正确答案】 D

【答案解析】解析：classic标准的，权威性的(如：The suit was a classic style，a classic example of bureaucratic inefficiency)。typical(of)a.典型的，有代表性的。customary a. 习惯性的，习俗性的。practical a.实际的，实用的。