The results of the experiments have shown that common courtesies ______.
A. are still with us
B. are disappearing
C. vary with professions
D. needs rigorous study
查看答案
What was really under the carpet？
A. The packet of cigarettes.
B. Eddie's hammer.
C. A lump of wood.
D. The missing pet.
Why didn't Eddie take out the thing under the carpet？
A. It was impossible for him to take up the carpet once it was fitted.
B. He didn't need the cigarettes because he had some more in the car.
C. It would take too long to take up the carpet and refit it.
D. He intended to come back and remove the lump the next day.
Which of the following can best describe the attitude of Martin I. Hoffert to the proposal？
A. Indifferent.
B. Positive.
C. Suspicious.
D. Critical.
What is happening is a survival-of-the-fittest struggle affecting ______ smaller factories
A. primarily
B. rationally
C. primitively
D. respectively
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