如图（甲）是某物体运动的s﹣t图象，则图中能与之相对应的v﹣t图象是（　　）

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图为“探究馒头在口腔中的变化”的实验设计，图中试管均置于37℃温水中10分钟。

    Here are t____ pictures. A man and a boy are in one picture. Who are they? L____ me tell you. The man is Mr. White, and the boy's n____ is Bill. He's the man's son. Now they are in Bill's bedroom. We can see some Chinese b____ on his desk. And on the bed, t____ is a shirt. It's Bill's. His trousers are on it, too.

    Now let's l____ at the other picture. You can see a woman and a girl in it. The woman is Bill's m____ and she's in her daughter, Ann's room. You can see a photo o____ the Whites on the white wall. W____ that on the floor? Oh, it's Ann's hat. but it looks l____ a brown cat.

若角α的终边经过点P（3，2），则tanα的值为____