问题 单项选择题 B型题

食品的脂肪成分被微生物分解生成脂肪酸和甘油的变化为()

A.发酵

B.腐败

C.酸败

D.变败

E.变质

答案

参考答案:C

解析:在以微生物为主的各种因素作用下,食品的成分被分解、破坏,失去或降低食用价值的一切变化称为变败;食品的蛋白质成分在厌氧条件下被微生物分解,产生以恶臭为主的变化称为腐败;食品的脂肪成分被微生物分解生成脂肪酸和甘油的变化称为酸败;食品的糖类成分被微生物分解成酸、醇和气体的变化称为发酵。

完形填空

When reading a book in a Florida library a year before, John became ___小题1:__ (interest) not in the contents of the book, but in the notes penciled in the margin. He discovered the former owner's name and located her address and wrote a letter introducing himself. During the next year, they grew to know each other through the mail. John requested a photograph, ___小题2:___she refused, saying if he really cared, it wouldn’t matter what she looked like. When the day finally came, their first meeting was 7:00 p.m. at the Grand Central Station.

She wrote, “You’ll recognize me by __小题3:__ rose I wear on my coat.” So now John was in the station to meet the girl with a rose.

As a pretty and slim girl in green came over, John noticed her blue eyes like flowers in spring. He walked directly towards her, entirely forgetting she was not wearing a rose. As John came closer to her, he saw another woman with a red rose stood nearby. Well past 40, this woman had graying hair done under a worn hat. Seeing the girl in green ___小题4:__ (walk) quickly away, John felt as if he ___小题5:__ (split) in two. He desired to follow that girl, but longed for the woman __小题6:___ spirit had truly companioned and supported him.

The woman looked gentle and sensible. John went to her, saying, “I’m Captain John Blanchard. You ___小题7:___ be Miss Hollis. I am glad to meet you here. May I take you to dinner?”

She replied with a smile, “I don’t know what this is about. But the lady in green who just went by, __小题8:__ (beg) me to wear this rose on my coat. She said if you asked me out to dinner, I’d tell you she is waiting for you in the big restaurant across the street!”

单项选择题 A1/A2型题