单项选择题

According to the passage, background music is so widespread because it can ______.

A．help to create a soothing atmosphere
B．decrease production in factories
C．promote sales in all places
D．help to have more meals
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单项选择题
We can improve our speeches and writings ______.
A．by using words at random
B．by using words with care and accuracy
C．by using beautiful words we like
D．by using words which are grammatically right
单项选择题
Which of the following sentences is true according to this passage
A．It is by our experience that words are filled with meaning for us.
B．Poets are masters of words but novelists are not.
C．As meanings in words sing like music we should learn music in order to be a poet.
D．Animals, unlike human beings, somehow invented certain sounds to express thoughts and feelings, actions and things.
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