下列价格形式中属于国家指导价形式的是( )。
A．标底价
B．设计概算
C．施工图预算
D．竣工结算
参考答案：A
-The radio says it will rain next Sunday.
- ,we're going for a picnic that day.[ ]
A. I hope it will
B. I hope not
C. I don't think so
D. I'm afraid not
流通加工完善了物品的使用价值
