题目

第三部分  阅读理解（共20小题；每小题2分，满分40分） 第一节  阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。 A When I was a kid, I always used to wonder how in the world my father work outside in the winter without a coat. It could be minus 20 degrees centigrade and there’d be Dad, removing snow, or perhaps chopping some wood --- his coat thrown aside--- wearing a shirt , a cap, and a pair of gloves.     “Aren’t you cold, Dad?” I’d ask. “No,” Dad would reply. “I’已知23a=85b=c÷23，且a、b、c不等于0，则a、b、c中最小的是（　　）A．aB．bC．cD．不能确定