A:y2=-8x
B:x2=-8y
C:y2=x或x2=-8y
D:y2=x或y2=8x
看图,读一读,选择正确的句子。
A. Hello. This is my mother. I loveher.
B. Hello. I'm Grandma and this is yourGrandpa.
C. Look, this is my classmate. His nameis Bob.
D. Good morning, Kitty.