Question

【题目】A computer is usually a screen, a main unit ,a mouse and so on.

A. made of B. made from C. made up of D made out of

Answer 1

【答案】C

【解析】

试题分析：句意：一台电脑通常是由一个屏幕，一个主机，一个鼠标等组成。be made of 用……制成的。指从成品上能看出原料，制成物没有改变原料的本质；be made from用……制造的。指从制成特看不出原料，制成物已改变了原料的本质； be made up of 用……构成或组成的。指人、物皆可，指结构成分；be made out of 由……制成的。与be made of , be made from意思类似。故答案为C。