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【单选题】
在序数效用理论中，用来表示消费者偏好的曲线是______。A.
预算约束线
B.
无差异曲线
C.
平均成本线
D.
等产量线
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举一反三
【单选题】Even if you had never heard of this condition, you might assume that sinusitis refers to __________.
A.
surgical repair of the sinus
B.
incision of the sinus
C.
inflammation of the sinus
D.
excision of the sinus
【单选题】---How do you respond when ________ whether your girlfriend or wife looks fat? --- Never say what you think. She just wants some reassurance(肯定) from you that she’s attractive.
A.
asking
B.
to ask
C.
asked
D.
being asked
【单选题】—I________as a cashier for 10 straight years, but I never had a sense of achievement. —Is that why you set up your own business?
A.
worked
B.
have been working
C.
would work
D.
have worked
【简答题】阅读短文，将其中划线部分的句子译成中文。 Yo-Yo Ma was born in Paris in 1955.He is Chinese but has never lived in China .He began to learn to play the cello (大提琴),when he was four years old .He became a cellist when he wa...
【简答题】____________________(他想告诉你的是) before he left was that he had never told a lie to you.
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