解方程:(x-1)(x+2)=70.
原方程可变形为x2+x-72=0,
(x+9)(x-8)=0,
x+9=0,x-8=0,
∴x1=-9,x2=8.
输卵管妊娠的结局()
A.流产
B.破裂
C.继发性腹腔妊娠
D.陈旧性宫外孕
E.卵巢妊娠
— Would you like to go camping with me when the summer holiday comes?
— I really dislike camping, but I will ______ you if you insist.[ ]
A. company
B. companion
C. accompany
D. compare