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【简答题】
差模放大电路能有效地克服温漂,这主要是通过_______。
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【简答题】听下面的材料，回答1至3题。 1.Why does the woman have a sore throat? . A. Because she had too many peppers. B. Because she was infected by virus. C. Because she had a bad cold. 2. What will the woman do according...
【单选题】Which of following is not the reason that Shirley fails to keep her diabetes under control?
A.
she was not careful about the diet.
B.
she was unwilling to do more activities.
C.
she failed to lose body weight .
D.
she didn’t follow doctor’s advice when taking medications.
【简答题】公共关系的三大构成要素是( )、( )和( )。
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