题目

阅读理解 Maria: I like milk and bananas.I don't like hamburgers or French fries.I have two eggs and a banana for breakfast. Bill: I like salad and chicken.I don't like ice cream.I have chicken and tomatoes for dinner. Bob: I like hamburgers and ice cream.I don't like tomatoes.I eat lunch at school.I have hamburgers and oranges for lunch. 1.Does Maria like milk? A.Yes, she does.                              B.No, she doesn't.  C.Yes, I do.                                     D.We don't know. 2.What d我们对人体吸入的空气和呼出的气体的探究时知道,人呼出的气体中含有二氧化碳、氧气、水,吸入空气中也含有二氧化碳、氧气、水.请你选择其中的一种物质完成下列科学探究: 人吸入的空气和呼出的气体有什么不同? 猜想(假设) 实验 证据 结论与解释 讨论 吸入的空气中二氧化碳含量低,呼出的气体中二氧化碳含量高 向收集有空气和呼出气体的集气瓶中分别滴入相同滴数的澄清石灰水并振荡 空气中的石灰水不变浑浊(或浑浊少),盛呼出气体的集气瓶中石灰水变浑浊 呼出的气体中二氧化碳含量比空气中的高 空气样品中二氧化碳的含量低,不足以使滴入的澄清石灰水变浑浊(或使澄清石灰水浑浊少)
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