《建筑消防安全检测评价技术规程》规定，喷头的一般技术要求严禁给喷头附加任何（）涂层
A.标志性
B.标识性
C.标记性
D.装饰性
参考答案：D
材料储备可解决材料（）的矛盾。
A.生产和材料消耗
B.储存与保管
C.运输与周转
D.周转与流通
Mum, I was wondering if you could lend me a few dollars until I on Friday.
A． get paid
B． got paid
C．have paid
D．had been paid
