单项选择题
Passage Three
Questions 32 to 35 are based on the passage you have just heard.
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A.25 minutes.
B.24 minutes.
C.10 minutes.
D.7 minutes.
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单项选择题
A.That drugs should not be used without doctors’ advice.B.That drugs and substances are different.C.That substances should be used in a scientific way.D.That the misuse of substances is harmful.
A.That drugs should not be used without doctors’ advice.
B.That drugs and substances are different.
C.That substances should be used in a scientific way.
D.That the misuse of substances is harmful.
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