若x=﹣2是函数f（x）=（x²+ax﹣1）e^x﹣1的极值点，则f（x）的极小值为（    ）

如图，∠C=110°，请添加一个条件，使得AB∥CD，则符合要求的其中一个条件可以是____.

   When I was in the third grade, I was chosen to be the princess in the school play. For “weeks my mother had helped me practise my lines. But once on the stage, every word1  from my head. Then my teacher asked me to change my role to be a narrator (解说者) for the play.   2 I didn’t tell my mother what had happened that day, she noticed my   3 and asked if I wanted to take a walk in the garden.
   It was a lovely spring day. We could see dandelions (蒲公英) popping (炸开)  4   the grass in bunches (束). I watched my mother bend down by one of the bunches. “I think I'll dig up (挖光) all these weeds (野草),” she said. “From now on, we'll   5  have roses in this garden.”"But I like dandelions," I protested(抗议). “All flowers are  6 —even dandelions !”

   My mother looked at me seriously. “Yes, every flower gives pleasure in its own way, doesn't it?” she asked thoughtfully. I nodded. “And that is  7  of people, too,” she added.When I   8  that she had guessed my pain, I started to cry and told her the truth. “But you will be a wonderful narrator,” she said,    9  me of how much I loved to read stories'aloud. Thanks to my mother's  encouragement,  I got to know everybody had his or her own    10  in the world. I felt proud of the role in the play.

图中的四个冲程不是按照热机正常工作的顺序排列的，你认为让汽车获得动力的冲程是（　　）