This dictionary is _____ to me,but that one is ____A great help;helpful B a great help;of little use;C important;of few importance; D very helpfui;of no any use请说明理由

问题描述:

This dictionary is _____ to me,but that one is ____
A great help;helpful B a great help;of little use;
C important;of few importance; D very helpfui;of no any use
请说明理由

D
be of +名词=一个形容词

B

B a great help;of little use;

b

选B 这本字典对我很有用处,但是那本一点都没有用.
有but,说明一本有用一本没用.排除A
D应改成of no use
C应改成of little importance,因为importance不可数.