番茄果皮红色（D）对黄色（d）为显性，若将红色番茄（Dd）的花粉授到黄色番茄（dd）的柱头上，则黄色番茄上所结果实的颜色和种子中胚的基因组成分别是（　　）

世界三大短篇小说巨匠是____（国）____、____（国）____、____（国）____。

    There's an 1 tree behind the Crisps' house. Jack Crisp is standing near the tree. There are some apples on the tree. Jack is looking 2 the apples. They are big and red

    Jack is 3. He wants to eat an apple. Jack isn't tall. He can't reach the apples. He is putting a box under the tree. Can he reach the apples now? No, he can't. He is too short.

    Here comes Paul Crisp. He is Jack's 4, "Hey, Jack! What are you doing?"

"Please help me? I can't reach the apples."

    Paul picks up 5 apples and says, "Here you are, Jack. One for you, and one for me!"

    "Thank you, brother."

下图为中国古代某项手工业工序示意图（局部）。与此相关的科技成就是