A:炽( zhì)痛确凿(záo)度(duó)德量力鳞次栉(zhì)比
B:静谧( mì)寒噤(jìn)广袤(mào)无垠忍俊不禁(jīn)
C:猝(cù)然诘(jié)责气冲斗(dòu)牛销声匿迹(nì)
D:扶掖(yè)荫(yīn)庇踉踉跄跄(qiàng)叱咤(zhà)风云
My study in junior high school is coming to an end. It's time ____us_______.
开口向下的抛物线的顶点P的坐标是(1,-3),则此抛物线对应的二次函数有( )