问题 选择题

猪肉的新鲜度可以通过测试pH来判断.有资料显示,pH与肉类新鲜度的关系为:

名称新鲜肉次鲜肉变质肉
pH5.8~6.26.3~6.6>6.7
根据上表判断,肉类变质过程中酸碱性的变化趋势是(  )

A.酸性变弱

B.酸性变强

C.酸性不变

D.碱性变弱

答案

根据上表判断,肉类变质过程中pH逐渐升高,酸性减弱.

故选A.

阅读理解

阅读理解。

     A taxi driver taught me a million dollar lesson in customer satisfaction and expectation. Inspiring speakers

charge thousands of dollars to give his kind of training to corporate directors and staff. It cost me only a $12

taxi ride.

     I had flown into Dallas just for the purpose of calling on a client. Time was important and my plan included

a quick turn-around trip from and back to the airport. A clean taxi pulled up.

     The driver rushed to open the passenger door for me and made sure I was comfortably seated before he

closed the door. As we got in the driver's seat, he mentioned that the neatly folded Wall Street Journal next to

me for my use. He then showed me several tapes and asked me what type of music I would enjoy.

     Well! I looked around for a "Candid Camera!" Wouldn't you? I could not believe the service I was receiving!

I took the opportunity to say, "Obviously you take great pride in you work. You must have a story to tell."

     "You bet," he replied,"I used to be in Corporate America. But I got tired of thinking my best would never be

good enough. I decided to find my right position in life, somewhere I could feel proud of being the best I could

be.

     I knew I would never be a rocket scientist, but I love driving cars, being of service and feeling like I have

done a full day's work and done it well. I evaluated my personal property and, I became a taxi driver!

     One thing I know for sure, to be good in my business I just have to meet the expectations of my passengers.

But, to be GREAT in my business, I have to EXEED the customer's expectations! I like the sound of being

'great' better than just being 'average'.

     Did I tip him big time? You bet!

     The taxi driver taught me a great life lesson: Go an extra mile when providing any service to others. And

there is no good or bad job you can make any job good.

1. What lesson did the author learn from the taxi driver? 

A. How to make the best use of time.

B. How to do better in the service business.

C. How to turn an interest into your career.

D. How to become a motivational speaker.

2. Why did the author look around for a "Candid Camera"?

A. Because he was afraid he would be photographed in the cab.

B. Because he was worried what the driver could be up to.

C. Because he was amazed by the way the driver was treating him.

D. Because he wasn't interested in the tapes offered by the driver.

3. It can be inferred from the story that _____.

A. the taxi driver couldn't accept just being average

B. the author was anxious to get back to meet a client

C. when the author waited for a taxi at the airport, he was not in a rush

D. the taxi driver loved to play his favorite music during rides

4. According to the story, the taxi driver _____.

A. was dissatisfied wit his present job

B. was once often rewarded for being a model worker

C. enjoyed offering his customers more than they expected

D. was forced to become a taxi driver to support his family

单项选择题