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听力原文：M: Have you done the lab experiment for physiology yet--the one on taste?
W: Yeah, it was kind of fun--mapping the taste buds. Didn't you think so?
M: I'm doing it this afternoon. How long will it take?
W: It went pretty quickly--under an hour, anyway. See, first you mix up the four solutions.
M: You take water and add either sugar, lemon juice, salt, or... uh... What was it?
W: Bitter quininE.
M: That's it... uh... then what?
W: Then all you have to do is taste each sample and describe where each flavor seems most intensE.
M: Is that hard?
W: Not really. One thing to remember though--not all the taste buds are on the tonguE.
M: Right. I'll keep that in minD.And thanks for going over this with mE.Maybe we could talk about this after I've tried it--we could get a pizza or something.
W: Great. Give me a call.
(20)
A.To see how certain chemicals produce different flavors.
B.To determine if a person can distinguish salty and sweet solutions.
C.To map the location of taste buds.
D.To count the number of taste buds.

A.M:
B...
C...
D.
M:
E...
F...
G.
M:
H.
M:
I.
W:
J.
(20)
A.To
K.
B.To
L.
C.To
M.
D.To

【参考答案】

C
解析：这道题需要考生听出“mapping the taste buds”，意思是“测定味蕾的分布位置”。或者......

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