题干
— I consider buying her an iPad3 for her birthday.
—_______ Tom brings the same present?
A：If
B：What
C：What if
D：How about
答案(点此获取答案解析）
C
— I consider buying her an iPad3 for her birthday.
—_______ Tom brings the same present?
A：If
B：What
C：What if
D：How about
，方程的根为（ ）