分类：教育/科学-外语学习
问题：第2题2.Althoughthetrfficisnotbusy, 
2.Although the trffic is not y, he likes to drive at a _______ speed.　A.spare B.fast C.moderate D.moral
回答：2.Although the traffic is not busy, he likes to drive at a _______ speed.

 C.moderate 
中速度一般用moderate 表示