一台单相变压器的额定容量SN=5000kV·A，额定电压U1N／U2N=35kv／6.6kV，fN=50Hz，铁心有效截面积为1120cm2，铁心

What does the woman mean when she says this:

A．She is showing comprehension.

B．She is expressing surprise.

C．She is talking to herself.

D．She is dismissing the man.

What does the professor imply when she says this？

A．Because she wants the students to have different opinions from hers.

B．Because she wants to draw the students' attention to the answer.

C．Because she is trying to confuse the students.

D．Because she thinks that the students do not know the answer.

What does the professor imply when she says this:

A．Marine mammals are not harmed by supersonar.

B．The supersonar has an adverse effect on marine mammals.

C．The military is deeply concerned about the welfare of dolphins.

D．Marine mammals think supersonar is another mammal.

What does the woman mean when she says this:

A．She is trying to persuade the man.

B．She is not sure that she understood.

C．She is expressing doubt about the time.

D．She is changing her mind about going.

What does the professor imply when she says this:

A．She is very uncertain about the risks of the research.

B．She is somewhat interested in doing research in this area.

C．She is withdrawing her support for future research.

D．She agrees that research should continue in spite of problems.

What does the student imply when she says this:

A．She wants to take on more duties than he's offering.

B．She feels overwhelmed by the number of duties.

C．She feels the professor is taking advantage of her.

D．She is unsure whether she has the time for this jo

What does the professor imply when she says this？

A．The parking lot will be right next to the water.

B．The parking lot will not be as valuable as before.

C．The parking lot will not exist any longer.

D．The parking lot will be moved to a place far from the beach.

What does the professor imply when she says this:

A．Marine mammals are not harmed by supersonar.

B．The supersonar has an adverse effect on marine mammals.

C．The military is deeply concerned about the welfare of dolphins.

D．Marine mammals think supersonar is another mammal.

What does the woman mean when she says this:

A．She is not sure that the student employee will give her the form.

B．She thinks that he will have to wait for the student employees.

C．She does not want the man to bother her because she is busy.

D．She is is not sure that the man understands what to do.

A．She has already seen the art exhibit．

B．She would be willing to go on the trip．

C．She prefers walking to taking the bus in New York．

D．She is surprised that she has not heard of the High Lin

E．