题目内容：
Ships are _____ than planes that people take them mainly for pleasure.
A． very much slower B． so much slower
C． too much slower
D． much more slower
参考答案：
答案解析：
单选题：Ships are _____ than planes that people take them mainly for
- 题目分类：英语三级B级
- 题目类型：单选题
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B． so much slower
C． too much slower
D． much more slower