第12题: [单项选择]Americans eat ______ as they actually need every day. A. twice as much protein B. twice protein as much twice C. twice protein as much D. protein as twice much 参考答案:A 答案解析:[解析] 此题考查比较级的倍数表示方法。much修饰名词,应放在protein之前,twice表示倍数,修饰as much protein as,也应前置。