【判断题】In linguistic evolution, speech is prior to writing.
【判断题】Writing is prior to speech.
【单选题】Prior to _____ the formal speech ,first he should
【判断题】In linguistic evolution, speech is prior to writing.
【判断题】与超声传感器相比,红外测距的准确度更高。
【判断题】Speech is prior to writing.
【多选题】用于垂直和水平移动货物作业的车辆有( ) (1.0 分)