---Mum, I’d like to buy trousers like Lucy’s

---OK, We can buy _______ than hers, but _______ hers.

A．a cheaper one; as nice as

B．a cheaper pair; as good as

C．a better ones; not as cheap as

D．a more important pair; not so nice as

制定区域规划的原则包括（）

A.统一原则

B.发挥优势原则

C.兼顾全局原则

D.效益原则