关于X线阳极效应的描述，错误的是（）

A.在平行于X线管长轴方向上，近阳极端有效焦点小，X线量少

B.在平行于X线管长轴方向上，近阴极端有效焦点大，X线量多

C.在垂直于X线管长轴方向上，有效焦点的大小对称相等，X线量分布也相等

D.阳极效应在临床实际工作中不必考虑

E.摄影时应注意使厚度大的组织放在阴极端

根据句子意思，用括号中所给词的正确形式填空，每空填一词。

1. How many times do you brush your              (tooth) every day?

2.              (luck), John got back the notebook that he had lost at the cafe.

3. His               (one) name is Mike. But I don't know his family name.

4. Eat some vegetables and fruit every day because they are              (health) food.

5. Please tell me the              (win) telephone number, I want to interview him.