【单选题】听力原文:M: What are those shirts made of? W: They are made of cotton, but sometimes made of wool or nylon. M: Are those made of cotton more expensive? W: Yes, that' s right. According to the dialogue, wh...
【单选题】听力原文:M: What are those shirts made of? W: They are made of cotton, but sometimes made of wool or nylon. M: Are those made of cotton more expensive? W: Yes, that's right. According to the dialogue, wha...