听力原文:M: I'm going to the lab for an hour to do that biology experiment.W: For an hour?
听力原文:M: I'm going to the lab for an hour to do that biology experiment.
W: For an hour? Dr. Walters said to count on at least an afternoon.
Q: What does the woman mean?
(19)
A.The experiment will take a long time.
B.The students should count their time in the lab.
C.Dr. Walters teaches biology in the afternoon.
D.Biology lab is open one hour every afternoon.