句型转换。

1. Can I help you? (同义句)

    ______ can I ______ for you ?

2. The black hat is eight dollars.(对划线部分提问)

    ______ ______ is the black hat?

3. She likes yellow shorts. (变成否定句)

    She ______ ______ yellow shorts.

4. His pen friend is twelve. (对划线部分提问)  

     ______ his pen friend?

5. The sweater is ￥60. (同义句)

    The _____ ______ the sweater is ￥60.

最适合区域法的功能成本系数图上，离原点越远的点与V=1线( )。

A．距离越大

B．距离越小

C．距离不变

D．重合