帮我讲解这几道题。---Here is the extracted content from the image: **Question Section 1:** Question Stem: 按照琪琪列的算式, 本题要解决的问题是( )。 Options: A. 还剩余多少千克牛奶 B. 剩余牛奶需要几次运完 C. 共需几次可以运完这批牛奶 **Question Section 5:** Question Stem: 5. A、B两地相距420千米, 小明爸爸开车从A地到B地, 3小时行了252千米。照这样计算, 行完全程一共要用几小时? 下面列式正确的是( )。 Options: A. 3+420÷(252÷3) B. 420÷(252÷3) C. (420-252)÷(252÷3) **Problem Solving Section: 解决问题. (共31分)** Problem 1: 亮点原创. 粮食生产“二十连丰”, 绿水青山成色更足, 乡村振兴展现新气象。2023年王杰家获得了大丰收, 其中玉米收了7袋, 土豆收了5袋; 每袋玉米32千克, 每袋土豆45千克。王杰家2023年玉米和土豆一共收了多少千克? (5分) Problem 2: 2. 王师傅3小时加工零件105个。照这样计算, 王师傅8小时可以加工多少个零件? (用[...]) *(Note: The last part "(用[...])" is partially obscured in the image.)* Problem 4: Image Description: - Two illustrations of children. - Left illustration: A girl labeled "小丽". She is pointing upwards. A speech bubble next to her says "我每天做15道". - Right illustration: A boy labeled "小明". He is holding a book or tablet. A speech bubble next to him says "我每天做20道". Text related to Problem 4: 小明每天做的口算题比[...] *(Note: The text "小明每天做的口算题比" is followed by obscured text.)* **Other Content:** Text: 行创作的一种艺术, Diagram/Text: - Illustration of a flower labeled "菊花". - Next to the illustration are three text boxes arranged vertically: - 制作成束花 - 数量比 - 要用时2小时 Sub-questions: (1) 制作它们一共[...] *(Note: The text after "一共" is obscured.)* (2) 制作菊花比[...] (3分) *(Note: The text after "比" is obscured.)*