题干
给问句选答语。
⑴Are you cold? ____
⑵Would you like some fruit? ____
⑶Do you like dumplings? ____
⑷What's your favourite food? ____
⑸What's on the table? ____
A. Dumplings.
B. Yes, I am.
C. My favourite food is meat.
D. Yes, please.
E. Yes, I do.
答案(点此获取答案解析）
B,D,E,C,A
，若
存在零点，则实数
的取值范围是( )