适用于老年女性骨质疏松症患者的药物有：

Why does the student mention the African Student Association？

A．Because some jazz lovers are from the African Student Association.

B．Because African music has influenced jazz.

C．Because the African Student Association once held a jazz concert.

D．Because the African Student Association plays jazz very well.

Why does the student mention the African Student Association？

A．Because some jazz lovers are from the African Student Association.

B．Because African music has influenced jazz.

C．Because the African Student Association once held a jazz concert.

D．Because the African Student Association plays jazz very well.

Why does the student mention evolutionary theory？

A．He is digressing from the main topic.

B．He is trying to embarrass the professor.

C．He is expressing doubt about Greek philosophy.

D．He is comparing evolution to Anaximander's theory.

Why does the professor mention the "free-rider" problem？

A．To review a concept he explained in class

B．To give the student a plan to solve her problem

C．To clarify the problem the student is facing

D．To explain a benefit of working in groups

Why does the man mention that he is a new student at the school？

A．Because the woman doesn't know him.

B．Because he wants to introduce himself to the woman.

C．Because he wants the woman to help him.

D．Because the woman thinks he has an overdue book.

Why does the student mention Professor Connellys class？

A．She was not happy with the grade she received in the class.

B．She might be able to expand the research she did in the class.

C．It was the most difficult class she ever took.

D．Professor Connelly took the class on a trip to Venezuela.

Why does the student mention the nursery business where his uncle works？

A．To tell the professor where he would like to work

B．To give an example that he might discuss in his paper

C．To suggest a good place to shop for flowering shrubs

D．To impress the professor with his family's success

A．To explain his interest in a particular field of study．

B．To explain why he is looking for a job so late in the semester．

C．To explain why he would like to be an exchange student the following year．

D．To explain how he learned his computer skills．

Why does the professor mention the Western-Heritage Model used in her high school？

A．To explain why she prefers using the model

B．To emphasize that the model was widely used in the past

C．To correct an error in a student"s description of the model

D．To compare high school history courses to college history courses

Why does the author mention doorbell rings？

A．It is a type of information.

B．It is a type of break.

C．It is a type of incentive.

D．It is a type of warning.