1.选择题- (共7题)
1.已知定义在R上的可导函数f(x),当x∈(1,+∞)时,(x﹣1)f′(x)﹣f(x)>0恒成立,若a=f(2),b= {#mathml#}{#/mathml#} f(3),c= {#mathml#}{#/mathml#} f(3),则a,b,c的大小关系为( )
2.已知定义在R上的可导函数f(x),当x∈(1,+∞)时,(x﹣1)f′(x)﹣f(x)>0恒成立,若a=f(2),b= {#mathml#}{#/mathml#} f(3),c= {#mathml#}{#/mathml#} f(3),则a,b,c的大小关系为( )
5.定义:如果函数f(x)在[a,b]上存在x1,x2(a<x1<x2<b)满足f′(x1)= {#mathml#}{#/mathml#} ,f′(x2)= {#mathml#}{#/mathml#} ,则称函数f(x)是[a,b]上的“双中值函数”,已知函数f(x)=2x3﹣x2+m是[0,2a]上“双中值函数”,则实数a的取值范围是{#blank#}1{#/blank#}.
6.定义:如果函数f(x)在[a,b]上存在x1,x2(a<x1<x2<b)满足f′(x1)= {#mathml#}{#/mathml#} ,f′(x2)= {#mathml#}{#/mathml#} ,则称函数f(x)是[a,b]上的“双中值函数”,已知函数f(x)=2x3﹣x2+m是[0,2a]上“双中值函数”,则实数a的取值范围是{#blank#}1{#/blank#}.
2.单项选择- (共10题)
8.
-- Are you sure that he will come here in time?
--- You may ______ he will come to help us though he is very busy.
--- You may ______ he will come to help us though he is very busy.
A.rely upon that | B.rely upon it that |
C.rely upon what | D.rely upon it what |
9.
On Thursday, President Hu Jintao spoke with French President Nicolas Sarkozy over ___telephone on ___ global economic issues and next month's G20 summit in Cannes.
A.a; the | B.the; the | C.the; / | D./; the |
10.
Steve Jobs, American former Apple CEO and founder, ______ a week after birth by Paul and Clara Jobs, was a person who changed the world.
A.adjusted | B.adopted | C.adapted | D.absorbed |
12.
_____ for his mistake, the little boy could not but _____to his teacher that he was wrong.
A.Blaming; to admit | B.Blamed; admit |
C.To blame; admitted | D.To be blamed; admitting |
13.
—Why are you smiling at me?
— You look ______ in that hat.
— You look ______ in that hat.
A.accurate | B.original | C.positive | D.absurd |
14.
________, I lost heart in English, but my teacher often said to me, “Keep working hard, and you will succeed ________.”
A.At a time; in time | B.At a time; on time |
C.At one time; in time | D.At one time; on time |
15.
I am trying to work out the problem and I would appreciate_____ if you could turn the music _______.
A.That; up | B.this; around | C.it; down | D.you; back |
16.
If _______, these injuries can develop into more serious problems.
A.left untreating | B.left untreated |
C.leaving untreated | D.are left untreated |
试卷分析
-
【1】题量占比
选择题:(7道)
单项选择:(10道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:5
7星难题:0
8星难题:4
9星难题:1