问题 单项选择题

一般讲冻结速度以快速为好,因为鱼肉肌球蛋白在-2~-3℃之间变性最大。a淀粉的β化在+1~-1℃之间进行最快,所以必须快速通过()温度区域。

A.-10~-5℃

B.-1~-5℃

C.-1~5℃

D.5~10℃

答案

参考答案:B

完形填空

完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后各题所给的A、B、C和D四个选项中,选出空白处的最佳选项,并在答题卡上将该项涂黑。

One day I jumped into a taxi and took off for the airport.                        

We were driving in the right lane   36   suddenly a black car jumped out of a parking space  

37   in front of us.My taxi driver immediately put his foot on the   38 .The taxi slid a short distance quickly and   39   the other car by just inches! The driver of the black car moved his head around and started   40   at us.My taxi driver just smiled and waved at the guy; and I mean he was  41   friendly, which is truly beyond my expectation.

42   I asked, “Why did you just do that? This guy almost  43   your car and sent us to the   44  !” This is when my taxi driver  45   me what I now call “the Law of the Garbage Truck.”

He   46   that many people are like garbage trucks.They run around full of garbage, disappointment, frustration (挫败感) and   47 .As their garbage   48  , they need a place to dump (丢弃) it and sometimes they’ll dump it on   49 .Just smile, wave, wish them well, and move   50 .Don’t take it   51 .Don’t take their garbage and   52   it to other people at work, at home or on the streets.                               

The   53   line is that successful people don’t let garbage trucks take over their day.Life’s too short to wake up in the morning with   54  , so “Love the people who treat you   55 .Pray for the ones who don’t”.

36.A.as     B.when        C.before      D.while

37.A.even  B.still   C.right  D.only  

38.A.brakes      B.airbags     C.seats  D.gases

39.A.left   B.hit     C.attacked    D.missed

40.A.nodding    B.looking     C.yelling      D.frowning

41.A.really       B.exactly     C.almost      D.rarely 

42.A.Since       B.So     C.But   D.Yet 

43.A.blocked    B.ruined      C.passed      D.followed

44.A.airport      B.prison       C.court D.hospital

45.A.returned   B.showed    C.taught       D.brought

46.A.imagined  B.explained  C.argued      D.advised

47.A.doubt       B.eagerness  C.anger D.panic

48.A.piles up    B.breaks down     C.runs out    D.cuts down

49.A.none B.me    C.themselves       D.you

50.A.on     B.along C.in      D.out

51.A.formally   B.personally C.immediately     D.permanently

52.A.save  B.present     C.offer D.spread

53.A.finish      B.life    C.front D.bottom

54.A.losses       B.regrets     C.dreams     D.plans

55.A.well  B.differently       C.actively    D.hard

单项选择题