单项选择题

Passage Three Questions 22 to 25 are based on the passage you have just heard.

What causes adults to lose most of their teeth according to the speaker ()

A.Gum disease.
B.Unhealthy living habits.
C.Food particles.
D.Chemical crosion.

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热门 试题

单项选择题
What do we learn from the conversation?()

A.The man wants to make some changes in the scripts.
B.The woman does not take the recording seriously.
C.They cannot begin their recording right away.
D.Page 55 is missing from the woman’s scripts.

单项选择题
What do we learn from Maria’s phone call this morning ()

A.She decided to get married in three years.
B.She insisted that Eric pursue graduate studies.
C.Her father said she could marry Eric right away.
D.Her mother objected to Eric’s flying lessons.

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