若关于x的方程x2-ax-2a=0的一个根是3,则它的另一根是 ______.
由题意方程有一个根为3
设另一根为x,则3+x=a,3x=-2a
解得x=-65.
故填-65.
患者,女性,26岁,已婚,停经52d,下腹阵发性疼痛, * * 流血伴血块4h。检查:子宫稍大,宫口容1指,宫口有胚胎组织堵塞。
该患者的正确诊断是()。
A.先兆流产
B.难免流产
C.不全流产
D.稽留流产
E.习惯性流产
--- Not everything that is best for nature is good for people.
--- Yes, would anyone say that economic development should be stopped ______ nature?
A.in need of
B.in fear of
C.in favor of
D.in honor of