什么是自发气调贮藏和可控气调贮藏？
参考答案：
自发气调贮藏是指将生药密封在具有透气性能的塑料薄膜或带硅窗的塑料薄膜袋或帐中，利用生药自身呼吸作用和塑料的透气性，在一定温度条件下，自发调节密闭环境中的O2和CO2的含量，使之适合气调贮藏的要求，简称MA贮藏。例如塑料薄膜大帐法、硅胶窗薄膜封闭法等。
可控气调贮藏指将生药密封在不透气的气调室（或库）内，利用生药呼吸作用，并采用机械气调设备，对密闭系统中O2和CO2气体人工调节到适宜的气体组成的贮藏方法。
由于自发气调贮藏主要依靠生药自身的呼吸作用进行气体调节，因此主要适宜于短期贮藏，相对可控气调贮藏贮藏效果较差。
| 选词填空。 | |
| |
| A man went into a restaurant and sat down. A waiter went up to him and the man 1____ some of the most expensive dishes. The waiter brought them to the table and the man ate them 2____. Then a little boy came into the restaurant and sat at the man's 3____ The waiter came up and said to the man. "What would your little boy like to 4____, sir?" "Oh, just an ice cream. "The man told 5____ . Then he stood up and said to the waiter, "I'm just going out to buy a newspaper."He left the restaurant. The waiter gave the boy an ice cream. The boy ate it, and 6____ stood up and walked to the door. The waiter ran towards him. "Excuse me," he said, "but your father hasn't come 7____ and he hasn't paid for these dishes, not for your ice cream as well. " "I'm sorry,"the young boy said,"That has 8____ to do with me." "Oh, yes, it does, "the waiter said,"You will stay here 9____ your father comes back. " "He's not my father," the boy said. "I don't know who he is. He asked me 10____ I liked ice cream, and I said yes. Then he told me to come into the restaurant at 2 o'clock. |