听力原文：M: I just went to watch the sunrise at the seaside.
W: Why didn't you tell me？ It's five years since I last saw it.
What do we know about the woman？
A．She has never seen a sunrise.
B．She wants to watch the sunrise again.
C．She went to the seaside with the man.

听力原文：M: Ann, do you and your husband plan to have many children？
W: Only two. It's expensive to have a big family now.
What do we know about the woman？
A．She has already had two children.
B．She does not want to have any children.
C．She does not want to have a big family.

why does the professor say this:
A．To show how major parties usually deal with the same issues
B．To suggest that both parties should give education more attention
C．To contrast the philosophy and methods of opposing parties
D．To point out which party is more concerned with education

According to the professor, why is chemistry sometimes called the central science？
A．Chemistry courses are the most difficult．
B．Chemical processes occur all around us．
C．Chemistry students have high status．
D．Chemists study how to control diseases．

Which of the following can be inferred from the passage？
A．Greater percentage of women are advancing professionally in the US than previously.
B．Professional men refuse to accompany their female colleagues on business trips.
C．Each year there are more female tourists in the United States.
D．Business women become successful by showing a willingness to travel alone.

The word which in the passage refers to
A．tale
B．Scandinavia
C．manuscripts
D．Old English