题目

The man would have paid _______ for the house if the salesgirl had insisted because he really wanted it. A . twice as much B . much as twice C . as much twice D . twice much as 答案：A美国农业的特点包括（ ）①专业化生产 ②机械化程度高 ③形成农业带 ④农业人口比重大．A．①②③B．③④C．①③D．②④