连线:把下列相关的事物用线连接起来
A—2—c B—1—b C—3—a
抛物线y=4x2-4的顶点坐标是( )
A.(0,-4)
B.(-4,0)
C.(0,4)
D.(4,0)
Why would customers pay a premium price for Thomas Moore’s butter().
A.Because it was melting.
B.Because it was good and cheap.
C.Because it was fresh and hard.
D.Because it was of premium quality.