题目

“So teach him to close the door”, my daughter Emma responded after listening to me 36   , again, about the dog coming in from the back door, bringing with him a blast of Buffalo January   37   air． Teach a dog to close a door behind him? That has got to be a really, really   38    thing to do．But then she took it a step   39   ．“Come on, Kolby”, she said, grabbing some treats（犒劳物） and   40   him in front of the open door．“Touch．” And “touch” he did, which moved the door to a   41   position．She  42   him with a treat, smiled, look储藏水果和粮食时，充加或抽取空气，能延长储藏时间，主要是由于 [　　] A．抑制有氧呼吸B．促进有氧呼吸 C．抑制无氧呼吸D．促进无氧呼吸