【单选题】如果不等式组 x<5 x≥m 有解且均不在-1<x<1内,那么m的取值范围是( )
【简答题】先化简再求值:3(m+1) 2 -5(m+1)(m-1)+3m(m-1),其中m=5.
【单选题】She's been promoted
A.
because she's brought off that deal.
B.
while she was working as Head of R&D.
【单选题】“不登高山,不知天之高也;不临深溪,不知地之后也。”作者是在强调
【单选题】“不登高山,不知天之高也;不临深溪,不知地之厚也。”作者是在强调
【简答题】已知m 2 -5m-1=0,则 2 m 2 -5m+ 1 m 2 =______.
【单选题】She's been promoted
A.
because she's brought off that deal.
B.
while she was working as Head of R amp;D.
【单选题】我国现存最旱的医书《黄帝内经》是()时期编订的。