句型转换。

1. Jim likes French fries.(变否定句)

    Jim _____ _____ French fries.

2. Betty doesn't have tomatoes.(变肯定句)

    Betty _____ tomatoes.

3. She eats vegetables and fruits every day.(变为一般疑问句)

     _____ she_____ vegetables _____  fruits every day?

4. My sister has eggs and apples for breakfast(划线提问).

    _____ _____ your sister _____ for breakfast?

5. Does your father have chicken for lunch?(否定回答)

    _____ , he _____ .

航空工业中使用的不锈钢有马氏体不锈钢和奥氏体不锈钢。（）

A.马氏体不锈钢是18-8型不锈钢。

B.奥氏体不锈钢在常温下是单相奥氏体组织，塑性好，无磁性。

C.奥氏体不锈钢是Cr13。

D.加入铬元素，合金钢就可以在常温下成为单相铁素体组织。