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【单选题】
电源电压为±9V的OCL电路，输出端的静态电压应该调整到（）V。A.
+9
B.
﹣9
C.
4.5
D.
0
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举一反三
【单选题】______ fathers are both teachers.
A.
Ann's and Jane
B.
Ann's and Jane's
C.
Ann and Jane's
D.
Ann and Jane
【单选题】听力原文：W : What do you think of Jane's speech? M: Even though her speech was the last one on the program, it was the best one. Which of the following statements is true?
A.
Jane spoke last but not best.
B.
Jane spoke last and best.
C.
Even though last, Jane spoke fast.
【简答题】Jane and I live in one room. Jane and I ______.
【单选题】That tennis ball is one of ___________.
A.
Jane fathers
B.
Jane’s fathers’
C.
Jane father’s
D.
Jane’s father’s
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