题干

2012年4月15日,央视《每周质量报告》曝光某省一些厂商用生石灰处理皮革废料,熬制成工业明胶,卖给一些药用胶囊生产企业,由于皮革在工业加工时,要使用含铬的鞣制剂,因此这样制成的胶囊,往往重金属铬超标,严重危害服用者的身体健康.该事件报道后,某市药监局立即成立调查组,要求所有的药用胶囊在进入市场前必须进行两轮检测,只有两轮都合格才能进行销售,否则不能销售,两轮检测是否合格相互没有影响.
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阅读下面短文,从各题所给的A、B、C、D四个选项中选出最佳选项。

C

    One night, when I was eight, my mother gently asked me a question I would never forget. "Cindy, my company wants to promote (升职) me but needs me to work in Brazil. This is like your teacher telling you that you've done well and allowing you to skip (跳) a grade, but you'll have to leave your friends. Would you say yes to your teacher?" She gave me a hug and asked me to think about it. I was lost in thought. The question kept me wondering for the rest of the night. I had said "yes" but for the first time, I realized the difficult decisions adults had to make.

    For almost four years, my mother would call us from Brazil every day. Every evening I'd eagerly wait for the phone to ring and then tell her everything happened during the day. A phone call, however, could never take her place and it was difficult not to feel lonely at times.

    During my fourth-grade Christmas break, we flew to Rio to visit her. Looking at her large empty apartment,   ▲    It was then I started to understand the difficult choices she had to make. She needed to think about both family and work. Faced with difficult decisions, she used to tell me, you wouldn't know whether you make the right choice, but you could always make the best out of the situation, with a positive attitude.

    Back home, I reminded myself that what my mother could do, I could, too. If she managed to live in Rio all by herself, I, too, could learn to be independent. I learn how to take care of myself and set high but achievable goals.

    My mother is now back with us. But I will never forget what the experience has really taught me. I've learned a lot because of this separation. There are lots of difficult decisions that we have to face in our life. We need to have a positive attitude no matter what happens.