题目

下列实际应用中，主要从密度的角度考虑的是（ ） A . 用钨作为白炽灯泡灯丝的材料 B . 用液体氢作为燃料给火箭提供动力 C . 用塑料作为插座外壳的材料 D . 用塑料泡沫做电影场最中倒塌的“墙壁” 答案：D根据短文内容，判断正“T”误“F”。     Frank, Colin and Kate are my good friends. I know what they like. Frank likes bananas very much. He doesn't like oranges. Colin likes eggs very much. He doesn't like broccoli. What does Kate like? She likes strawberries, but she doesn't like bananas. Does she like oranges? Sorry, I don't know. (     )1. Frank and Colin are brothers.            (     )2. I don't know Kate.                       (     )3. Frank likes bananas.                     (     )4. Colin likes tomatoes.                    (     )5. Does Kate like bananas?  No, she doesn't.