— Dear, you need to make a(n)            by next week, to go to university at home or go abroad. You are going on eighteen.

— OK, Mom. I’m considering it.

A．appointment

B．suggestion

C．decision

D．excuse

下列有关排泄的意义的叙述不正确的是

A．维持体温相对恒定

B．调节体内水分和无机盐的平衡

C．排出生命活动产生的有害物质

D．排出未消化的食物残渣