【单选题】听力原文:M: I am surprised to see you using the record player I was going to throw W: It still works. You'd better get fid of these wasteful habits. What does the woman mean?
A.
The record player is still useful.
B.
The man shouldn' t have thrown it away.
C.
The man should abandon his bad habit.
D.
She is going to use the record player.
【判断题】( )视听语言就是利用听觉和视觉的双重刺激向受众传播某种信息的一种感性语言。
【单选题】冯·诺伊曼的计算机理论,硬件由主要是由控制器、运算器、( )、输入设备和输出设备五部分组成。
【多选题】白醋中乙酸含量的测定需要用到下列哪些试剂?
【单选题】可锻铸铁中的团絮状石墨由下述方式获得()
【判断题】同一电感线圈(L为定值),对不同频率的正弦电流表现出不同的感抗,频率越高,则感抗 X L 越大。电感具有通直阻交的作用。
【单选题】可锻铸铁中的团絮状石墨由下述方式获得( )
【单选题】听力原文:Are you free tomorrow? (13)
【判断题】伽利略望远镜的物镜是凸透镜,目镜也是凸透镜。
【多选题】白醋中乙酸含量的测定需要用到下列哪些试剂?