有头疖
参考答案:有头疖是指患处皮肤上有一红色结块,范围约3cm大小,灼热疼痛,突起根浅,中心有一脓头的疾病。
解下列一元二次方程
(1)(x+3)2=4(x+3)
(2)x2+4x-1=0.
Chen Yifei(1946-2005),who died in his ________ fifties,was ________ successful artist.
A.later;a most
B.latest;the most
C.late;a most
D.latter;the most