题干

机会成本是经济学原理中一个重要的概念,是指为了得到某种东西而所要放弃另一些东西的最大价值;也可以理解为在面临多方案择一决策时,被舍弃的选项中的最高价值者是本次决策的机会成本;还指厂商把相同的生产要素投入到其他行业当中去可以获得的最高收益。当下列情况出现时,你的理性选择是(    )

①预期银行存贷款基准利率下调——买入股票

②预期通货膨胀率进一步上升——增加现期消费

③人民币对美元汇率持续跌落,对英镑汇率持续上升——到美国留学

④2016年12月21郑州市出台住房限购升级政策——投资买入新房

A:①②

B:①③

C:③④

D:②④

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A

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    I could feel the judging eyes of my family burning a hole into the back of my head as I picked up my phone. All of a sudden, the chattering in the living room died and all I could hear was the sound of the turkey sizzling (发出嘶嘶声) in the oven.

    “Look at her! She's been on her phone all day long! It's all your fault! Children will never respect elders if they are not taught how to behave! ” my grandmother shouted.

    I was very shocked and angry! I opened my mouth to say something, but words failed me and I just sat down quietly on the chair like a mouse in its trap. I thought “Here we go again.” I truly love my family and I would do anything for them. I also know that they would do anything for me as well. However, there are moments that make me feel that they are just stuck with me. They all agree on one thing: technology is wrecking me.

    If I am going to be treated like a child or completely ignored, I will most likely not enjoy your company, and I feel that this applies to (适用于) the majority of the people. So I sometimes simply shut myself in my room and listened to the voices coming from the living room, thinking: They all grew up in a world so different that it amazes me how they have actually gotten this far. They did not have phones or any type of advanced technology, which is both good and bad. Bad because they had almost no type of fast communication, and good because they were forced to interact (互动) with one another, which is something today's society is lacking in. However, maybe if they made an effort to be aware of how things work nowadays, they would not be so against everything.