题干
句子配对
____Is this your school? A. It's in the kitchen.
____Where is your cat? B. Yes, it is.
____Where are your books? C. No, he isn't.
____Is he in the kitchen? D. Yes, they are.
____Are they near the phone? E. They are under the table.
____Is this your school? A. It's in the kitchen.
____Where is your cat? B. Yes, it is.
____Where are your books? C. No, he isn't.
____Is he in the kitchen? D. Yes, they are.
____Are they near the phone? E. They are under the table.
答案(点此获取答案解析）
B,A,E,C,D
无法知道。我们之外的外部世界是否存在，也是不知道的。”休谟的上述观点属于（ ）