阅读下列材料，按要求完成各题。

    This is Mr. Wilson's room. It's clean and tidy. It looks like（像） a nice picture. The walls are white and the window is big. You can see a photo of his family and a photo of his girlfriend on the wall. His girlfriend is Peggy Carmen. A yellow desk is near the window. You can see some green plants and five colorful flowers on it. A blue clock is on it, too. It is seven now. A baseball is under his bed. His T-shirt and his bag are on the bed. Look! What's that in the drawer(抽屉) of the desk? Oh, it's Mimi, a cat. It's black. It looks like a hat.

将泡过的玉米种子切开，在断面滴一点碘液，这时的现象是（  ）

第二次世界大战是人类历史上规模空前的战争，它给世界人民带来巨大灾难。中国的抗日战争是世界反法西斯战争的重要组成部分，中国人民共歼敌150多万，对日本的彻底覆灭起决定作用。中华民族为世界反法西斯战争的胜利付出巨大民族牺牲。

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