题目内容
【C14】
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What are doing at the airport？
One of the electronic instruments used by Dr. Tichauer, makes visible through electrical signals the work done by human muscle.
Another machine measures any dangerous features of tools, thus proving information upon which to base a new design. One conclusion of tests made with this machine is that a tripod stepladder is more stable and safer to use than one with four legs.
This work has attached the attention of efficiency experts and time-and-motion-study engineers, but its value goes far beyond that. Dr. Tiehauer's first thought is for the health of the tool user. With the repeated use of the same tool all day long on production lines and in other jobs, even light manual work can put heavy stress on one small area of the body. In time, such stress can cause a disabling disease. Furthermore, muscle fatigue is a serious safety hazard.
Efficiency is the by-product of comfort, Dr. Tichauer believes, and his new designs for traditional tools have proved his point.
What are involved in the design of a new tool according to the passage？
【C15】
听力原文：W: Airports are sad places.
M: Sometimes, I guess. But, we'll write. You'll come down at Christmas.
W: lf we can find the money.
M: Don't worry, Marta. Everything will be taken care of. They say that fares are going to be reduced in the next six months. And when I graduate, well...
W: That's two years from now. Two years is a long time.
M: The time will pass quickly. You'll see. I might even be able to go back to New York next summer.
W: Oh, John, you'll forget all about me. Your mother will find you a nice girl, you'll get married, and live happily ever 'after.
M: No, I won't. I swear I won't. Believe me please.
W: Whatever you say, all t know is that you are going to be taken away from me.
M: That's ridiculous] I'll write every day, whether you answer me or not.
W: Don't be silly. You'll have other things to do. (She begins to cry. )
M: Don't cry, Marta, please
Who do you think are the two speakers in the conversation？
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