【单选题】在超声波雾化器工作原理中,将电能转化为超声波声能的装置是
【单选题】在超声波雾化器工作原理中,将电能转换为超声波声能的装置是
【判断题】既然折旧和间接税不是要素收入,按照收人法这两项不应计人GDP。
【单选题】—What does your sister like doing in her spare time? —She watching TV. [ ]
【单选题】Although they plant trees in this area every year, the tops of hills are still ______.
【单选题】Although they plant trees in this area every year, the tops of some hills are still ______.
【判断题】既然折旧和间接税不是要素收入,按照收入法这两项不应计入GDP。( )
【单选题】They plant fruit __________ vegetables on their farm. [ ]
【单选题】Although they plant trees in this area every year, the tops of some hills are still _____. [ ]
【判断题】既然折旧和间接税不是要素收入,按照收入法这两项不应计入GDP。