【简答题】用所给单词的适当形式填空。 1. Listen! The girl ______ (sing) in the room. 2. What time ______ your mother ______ (go) to work every day? 3. May I ______ (borrow) your eraser? 4. Tom usually ______ (come) to school...
【单选题】Dialogue 3 Vocabulary 1. rebate /ˈriːbeɪt/ n. a refund of part or all of the amount paid 2. catch /kætʃ/ n. a hidden drawback or disadvantage 3. roll over transfer or carry over Listen to the conversa...
A.
She can use it to check her email.
B.
She can call family in case of an emergency.
C.
She can make cheaper long-distance calls with it.
【简答题】在极谱分析中为了建立浓差极化,要求极化电极 表面积 , 溶液中被测物质的浓度 要 _,溶液 搅拌。
【简答题】在极谱分析中为了建立浓差极化, 要求极化电极面积( )。(填写“大”或“小”)
【单选题】在计算机通信中,数据交换形式包含分组交换和线路交换,前者比后者()。
【简答题】多层圆筒壁定态传导传热过程中各层传热速率 ,各层传热面积 ,各层传热通量 。
【单选题】在计算机通信中,数据交换形式包含分组交换和电路交换,前者比后者( )