函数f（x）=$\frac{x^3}{3}$+x²﹣3x﹣4在0，2上的最小值是（　　）

    After finishing all the food in the little bowl，Goldilocks wanted to rest．She chose the small chair,but it was in pieces．Then she walked into the bedroom and very soon fell____in the small bed．The Bears returned to____house．Baby Bear pointed at Goldilocks and____，"That's the bad girl．She ate my food and broke my chair!"Hearing this．Goldilocks jumped up and hurried out of the house without____her basket．She decided not____for a walk in the forest again．

达尔文把通过激烈的____ ，适者生存，不适者被淘汰的过程，叫做____ 。