【单选题】He a bike to school when he was seven years old. [ ]
【单选题】Some people wouldrather ride bike as bike riding has of the trouble of taking buses.
【多选题】中华饮食文化就其深层内涵,可以概括成( )。
【简答题】概念教学中,提供例证时变换同类事物的非本质特征,以便突出其本质特征,这是利用了__。
【判断题】在装用TWC的汽车,一般装用氧传感器检测废气中的氧浓度,并将此信号送给ECU后,对空燃比进行反馈闭环控制。
【单选题】图像的平移、放缩和旋转。这是( )变换。
【单选题】Rather than _____ on a crowded bus, he always perfers _____ a bike.