题干
----Did Peter fix the computer himself?
-----He , because he does know much about computers.
-----He , because he does know much about computers.
A：has it fixed
B：had fixed it
C：had it fixed
D：fixed it
答案(点此获取答案解析）
C
xC（g），符合下列图象（Ⅰ）所示关系．由此推断对图（Ⅱ）的正确说法是 ( )．
