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【简答题】
A/D 转换器的作用是将 转换为 。单片机控制系统中,由传感感器、 A/D 转换器构成控制系统中 。
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举一反三
【简答题】听力原文：How are the family roles changed? How are the family roles changed? The dependent parents are cared for as if they were ______
【单选题】we must leave now. _________? [ ]
A.
how are you
B.
how old are you
C.
how often are you
D.
how about you
【单选题】_______your father wants to know is________ getting on with your studies. A. What; how are you B. What ; how you are C. How ; that you are D. That ; how you are
A.
What; how are you
B.
What；how you are
C.
How；that you are
D.
That；how you are
【简答题】我们知道如何谈恋爱，这一般是一种（）。
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