单项选择题 听力原文：W: Show me your tongue, please. All right. Stay in bed and keep yourself warm. I'll prescribe some pills for you to take in the morning and evening, and some syrup to take three times a day, with hot water.M: Is that all, doctor?W: Yes. You'll be better in a few days, I'm sure.Which instruction is not given by the doctor?A．Take deep breath.B．Take syrup three times a day.C．Show his tongue.D．Stay in bed.

单项选择题 矿物的光泽用类比方法常分为四个等级，具体是（）。

单项选择题 听力原文：W: Go ahead and have a seat.M: Thanks, but I'd rather stand.What does the man probably do?A．Remain standing.B．Sit down.C．Go ahead of the woman.D．Pick up the chair.