【正确答案】 A

【答案解析】[听力原文]
M: We are almost finished. Could you hand me the white pepper?
W: Why white pepper and not black? Aren't they the same thing?
M: Well, they are from the same plant, but white pepper is milder. I usually prefer that, for it has a more subtle flavor.
W: How? If they're from the same plant?
M: Well. It sort of depends on how ripe it is when it's picked. You do ask a lot of questions.
W: That's because you have all the answers. Did you learn about this stuff in cooking school?
M: Yeah, we study all kinds of herbs and spices.
W: So go on. It's interesting. How do we get black pepper?
M: Eh. Well, the pepper-com is actually a fruit. It grows on a vine, and it's not really black or white. It turns from green to yellow to red as it ripens. For black pepper, you pick it when it's still a little immature, and then dry it.
W: Drying darkens it?
M: Well, the skin turns dark as it dries.
W: Does that mean white pepper is pepper without the skin?
M: Exactly. It is put out to dry in the sun after the skin is rubbed off. It also matures a little longer than black pepper.
W: So they do all that just to get a milder pepper-corn?
M: Right, and for other reason. Some chefs like that it keeps white sources white.
W: These green pepper-corns are interesting. I've never seen them before.
M: Green pepper has a very distinctive flavour. Some people really like it.
W: So it must be picked really young.
M: Right. It's not sun-dried. It's either put in a liquid or freeze dried to keep the colour.
W: Well, you are quite the pepper expert, aren't you?
M: Oh, a good cook gets to know about spices.
W: I'll be judge of that. Let me taste. Hmm, you pass.