胖听是罐头食品常见的卫生质量问题，导致罐头胖听的原因不同，其对消费者的危害和处理原则亦不同
物理性胖听常见的原因是（）
A.内容物含糖量高
B.内容物含乳类
C.加热温度过高
D.冷却时降温过快
E.装罐过满或罐内真空度过低
参考答案：E
解析：生物性胖听是由于杀菌不彻底的残留微生物，或因罐头有裂缝，微生物从外界进入，在其中生长繁殖产气造成的。此类胖听常为两端凸起，叩击有明显鼓音，穿洞有腐败味气体逸出。
Sally was fourteen．She studied in a middle school．She liked dancing and singing and 1 a lot of time on them．But she hated math and even decided to 2．Her father was worried about it． It was Sunday. Sally’s father gave a call to his sister who 3 math in another school. He hoped she would come and tell his daughter 4 to learn math．The woman came and said，“You are a 5 girl．Sally．I’m sure you will soon learn math well if you do your 6．” “I’m afraid I can’t，Aunt，”said Sally．“Girls 7 be good at math.” “I don’t think so，”said the woman．“1 was good at it when 1 was a 8．You must do more 9 and try different Ways to solve(解决)math problems until you work them out，or at least 10 them better. Here is a math 11．Please think it over and see if you can work it out. “OK,” said the girl. “Let me 12 ” About an hour later Sally 13 the exercise book to her aunt and said, “I’ve tried many times and worked out the problem at last!” “Well done!” her aunt looked at her answer and said 14 , “Now you see, math is not as difficult as you 15 ”
|
