第22题: [单项选择]Because fuel supplies are finite and many people are wasteful, we will have to install ______ solar heating device in our home. A. some type of B. some types of a C. some type of a D. some types of 参考答案:A 答案解析:[考点] 考查名词限定词的用法。 由句子意思可知,some此处的意思应该是指不确定的“某一”而不是“一些”,因此type应该用单数;另外名词前的修饰短语不用冠词,因此选A。