某市2011年平均房价为每平方米12000元．连续两年增长后，2013年平均房价达到每平方米15500元，设这两年平均房价年平均增长率为x，根据题意，下面所列方程正确的是（  ）

“会不会制造工具是人和动物的根本区别”，人类最早制造和使用的劳动工具是（   ）

    In 2012, I had just recovered from a serious illness when I received an invitation to a writer's conference in Orlando, Florida. My family persuaded me that a(n)1might be just what the doctor ordered, so off I2.

    Arriving in the Sunshine State was rather tiring, but I3to catch a taxi to my4and settle in. The next morning, I took another5to the shopping centre to buy a few souvenirs.6I went to a cafe to have lunch, but all the tables were7. Then I heard a friendly voice saying, "You can8my table."

    I gratefully sat down with the9lady and we had a happy lunch together. As the10drew to a close she asked how long I would be in Orlando. I had already told her that I hadn't11a car, and  hadn't  realized  how12taking taxis would he. After a while she said, "My dear, don't use any more taxis. I'm retired and it would be my pleasure to13you wherever you wish." I told her that I couldn't put her to that14,but she brushed aside my protests(反对). She asked me where I was15and the next morning she was waiting at my apartment at the16time to take me to Disney World. She spent some time with me before leaving me to17alone. At the end of the day, she18to take me back to my accommodation. I19her money but she refused to take any.

    I'll never forget that wonderful lady who, through her20, filled my brief holiday in Florida with wonderful memories.

作文：

      人生何处不相逢。与他人相逢，也许就是一次情感的慰藉；与自然相逢，也许就是一次灵魂的洗礼；与书籍相逢，也许就是一次心智的陶冶；与历史相逢，也许就是一次精神的升华……总有一次相逢，会触动我们的心灵，温暖我们的人生。

      请根据自己的生活经历和切身体验，以“一次相逢一份暖”为题，写一篇文章。

      要求：①除诗歌外，文体不限；②不少于600个字；③文中不得出现真实的地名、校名、人名；④书写要正确、规范、美观。