问题 单项选择题 A1/A2型题

油脂在储存、运输期间,由于含有过量的水分和杂质,发生某种反应产生游离脂肪酸,使酸价增高。这里的“某种反应”是()。

A.水解

B.还原

C.氧化

D.催化

E.动力反应

答案

参考答案:A

解析:油脂在储存、运输期间,由于含有过量的水分和杂质,水解而产生游离脂肪酸,致使酸价增高。

阅读理解

We can make all the jokes we want about taking baths ourselves, but if we are ill in bed and can't get up, we'll be thankful to the nurses who help us get clean. While I am not a nurse, and have never given anyone a bath, I would imagine that it would take a lot of sympathy (同情) and patience to do so.

Yet those who attended the International Conference on Intelligent Robots and Systems last month were introduced to Cody, a robot that can bathe human beings.

The robot has a base that can be turned to all directions, two human­like arms, and movable wrists (腕). It uses a camera to locate parts of the human body.  It then uses bath gloves to clean with a little pressure.

The robot was designed at the Georgia Institute of Technology. Charles Kemp of the Healthcare Robotics Lab is the senior researcher for the project. In a test run, Cody   was able to remove 96% of a test subject's dirt—not bad  for a robot.

But don't go asking for Cody yet—he's still a model.  Yet researchers believe that one day Cody may take the  place of nurses for this task.  Researchers say that Cody  will give patients dignity and protect their personal information. I suppose that would depend on the patient.  I'm  not sure whether a robot using a camera would make me  feel very dignified.

Even so, I can appreciate the need.  We don't have  enough nurses to go around, and those places that are the  most short­handed, for example, nursing homes, are those  that have the most patients who are unable to bathe themselves. Still, before I get there, I hope they think of a better way to solve the problem.

小题1:The writer thinks bathing others must ________.

A.be a lot of fun

B.make you feel thankful

C.take a lot of patience

D.make you feel dignified小题2:What is the third paragraph mainly about?

A.Why and where Cody was designed.

B.What Cody looks like and who designed it.

C.What Cody can do and where it will work soon.

D.How Cody works and what has made that possible.小题3:We know from the fourth and fifth paragraphs that ________.

A.Cody can bathe patients better than a real nurse can

B.robots like Cody are being produced in large numbers right now

C.Cody can take the place of nurses completely in hospitals

D.researchers think Cody can protect patients' personal information小题4:There is a need for Cody because ________.

A.people are becoming lazier

B.it can bring down the cost of nursing

C.there are not enough nurses

D.there are too many nursing homes小题5:In the writer's opinion, Cody is ________.

A.acceptable but not perfect

B.strange but not creative

C.clever and strong

D.lovely and careful

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