—I don't feel well. I have a cold.

—_____[ ]

A. That's OK.               

B. I'm sorry to hear that.

C. Are you really ill?          

D. That's great.

丘脑非特异投射系统的功能有()

A．维持大脑皮质的兴奋状态

B．引起特定感觉

C．改变大脑皮质的兴奋状态

D．激发大脑皮质发出传出神经冲动

E．激发小脑皮质发出传出神经冲动