黄昏后，你穿过______的树影，踏着铺石板小径，进入这家老店。在后院的葡萄架下，寻一个好座位。长条的木板桌椅都漆成淡绿色，带着此地农舍由来已久的风格。挂在葡萄藤上的旧式风灯，将密密实实的巴掌似的葡萄叶照得______，饶有画意。填入横线部分最恰当的一项是( )。

A．斑斑驳驳 深深浅浅

B．重重叠叠 深深浅浅

C．斑斑驳驳 零零碎碎

D．重重叠叠 零零碎碎

A perfectly competitive firm will not expand its output beyond the quantity where:（）

A. the market price is equal to its marginal cost.

B. its marginal revenue is positive.

C. the marginal cost is greater than marginal revenue.