题目

There is not much time left; So I'll tell you about it _____. A. in detail   B. in brief   C. in short  D. in all 答案：B 解析: in brief(=in a few words)简短地（作状语）,例如：He told me in brief what had happened.（他简短地向我讲了已发生地事情。）此处in brief等于briefly。此处，in brief(=in a word, in short)简言之（作插入语）1)It is a long letter, but in brief, he says No.(这是一封长信，但简言之，他说“不”。) 2)John is smart, polite, and well-behaved设航行中的轮船所受的阻力与其速度成正比，如果轮船以速度v匀速航行时，其发动机的功率为P，则轮船以2v速度匀速航行时，其发动机的功率为（   ）A．2PB．4PC．6PD．8P