题目内容

They received the parcel that they ________ for a long time.

A. expected
B. had expected
C. had been expecting
D. had expected

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She stared at the painting, wondering where she ________ it.

A. saw
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Not only Dick but also Jack and I ________ interested in Chinese folk songs.

A. am
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帕累托最优只有在（）市场条件下才能出现。

A. 完全竞争
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公共选择可以定义为对非市场决策的经济学研究，简单地说，是对政府（）的经济分析。

A. 决策措施
B. 决策过程
C. 决策结果
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