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【单选题】
如果香烟和大麻两种商品计算得出的交叉价格弹性为负，那么这两种商品互为（）A.
替代品
B.
互补品
C.
奢侈品
D.
必需品
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反馈参考答案：
举一反三
【简答题】Two examples should (2) be enough to explain the point.
【简答题】Why should students not be blamed for their language deficiency? (Paras. 6) List two examples.
【简答题】电阻焊是焊件组合后通过电极施加______,利用电流通过接头的______及邻近区区产生______电阻热进行焊接的方法。
【简答题】根据句意，用所给单词的正确形式填空。(10分) 小题1:Jane prefers _______ (cycle). 小题2:Running can help you keep _______ (health). 小题3:Don’t speak to me like this. I didn’t feel like ___________ (lose) the goal. 小题4:She spend...
【简答题】电阻焊是工件组合后通过电极施加（），利用电流流过接头的接触面及邻近区域产生的（）进行焊接的方法。
【简答题】Tired of bad handwriting, Richie decided to perfect his penmanship (书法) last January. Though the year progressed, his writing didn’t. “My penmanship just got worse,” he says. “I get tired of trying to...
【简答题】Wang Yani was born in 1975. Even as a baby she loved to draw. Her father was an 1 .Yani wanted to be like him. So she tried to stand like her father as she painted, which made him laugh. One day, Yani...
【简答题】Wang Yani was born in 1975.Even as a baby she loved to draw. Her father was an . Yani wanted to be like him. So she tried to stand like her father as he painted,which made him laugh. One day,Yani pain...
【简答题】Two examples should be enough to explain the point.
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