水作为项目投入物时，水价按照( )确定。
A．支付意愿
B．政府指导价
C．承受能力加政府补贴
D．后备水源成本分解
E．恢复水功能的成本
参考答案：D,E
The weather turned out to be fine yesterday. I the trouble to carry my umbrella with me.
A．should have taken
B．could have taken
C．needn’t have taken
D．mustn’t have taken
高血压病Ⅱ级眼底表现是（）
A.眼底正常
B.视网膜动脉变细
C.眼底出血渗出
D.视网膜动脉变窄，动静脉交叉压迫
E.眼底出血伴视 * * 水肿
