题目

阅读短文, 选择正确答案。 Here are two pictures. A man and a boy are in one picture. Who are they? Let me tell. The man is Mr. White, and the boy's name is Bill. He's the man's son. Now they are in Bill's bedroom. We can see some Chinese books in the desk. And on the bed, there is a shirt. It's Bill's. His trousers are on it, under his shirt, too. Now let's look at the other picture. You can see a woman and a girl in it. The woman is Bill's mother and she's in her daughter, Ann's room. You can see a photo of the Whites on the white wall. Between the windows is a desk. A Clock is on下列不属于淋巴器官的是 A．胸腺       B．脾 　      C．骨髓        D.垂体