单项选择题

It can be inferred from the passage that which of the following is needed to make the trumpet work

A．Air pressure.
B．Daily cleaning.
C．Keen eyesight.
D．Longer fingers.
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单项选择题
The author believes that the trumpet is particularly important because it ________.
A．can be used in rock bands
B．has historical significance
C．is a religious instrument
D．has a narrow range
单项选择题
Which of the following statement is NOT mentioned in the passage
A．Aspirin has side effects on the stomach.
B．Aspirin can reduce fever.
C．The inventor of Aspirin lived in Greece.
D．One can use Aspirin to kill himself.
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