试题题干
() with what they were like 15 years ago, home PCs are cheaper, faster, and have a much bigger memory.
参考答案
正确答案:
试题解析
本题考查非谓语动词。逗号后句子成分完整,所以这里是非谓语,做状语。home PCs与比较的关系是被动关系,所以这里用被动形式compared。 句意:与15年前的情况相比,家用电脑更便宜,速度更快,而且内存更大。