单项选择题


Questions 22～25 are based on the following monologue.
Why do smokers welcome low-tar cigarettes

A．Because they are less harmful.
B．Because they cost less.
C．Because they taste better.
D．Because they last longer.
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单项选择题
The author thinks that the king’s experiment ______ .
A．was the first reliable experiment in language study in history
B．proved what it meant to prove
C．was not necessarily sound though based on observation
D．was utterly ridiculous and not worth mentioning
单项选择题
This passage might be taken out of a ______ .
A．review of a book
B．preface to a book
C．lecture on a book
D．advertisement of a book
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