题目

上个世纪90年代末,某国中西部出现了罕见的灾害天气,导致该地区玉米产量比预计下降了53%,造成玉米价格大幅度上升。玉米价格的上升,不仅造成玉米需求量小幅下降,还造成小麦需求上升。这说明(  )A.玉米的需求弹性较小,且玉米和小麦是替代商品B.玉米的需求弹性较大,且玉米和小麦是替代商品C.玉米的需求弹性较小,且玉米和小麦是互补商品D.玉米的需求弹性较大,且玉米和小麦是互补商品 Complete the dialogue with proper words or sentences. (用适当的词或句子完成对话)D → doctor M →manD: Good afternoon, young man. _______【1】_________?M: Good afternoon, Doctor. I’m not feeling well. I’ve got a headache.D: ________【3】________?M: Yes. My temperature is OK.D: Open your mouth and say “Ah”, please.M: Ah!D: _______【4】_________?M: For two days. Anything serious?D: ________【5】_________. You’ve just got a cold.M: Do I have to stay at home?D: Yes. Please stay at home and take this medicine three times a day.________ 【5】________.M: Thank you, Doctor.
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