1.选择题- (共8题)
1.某城市新修建的一条路上有12盏路灯,为了节省用电而又不能影响正常的照明,可以熄灭其中的三盏灯,但两端的灯不能熄灭,也不能相邻的两盏灯,则熄灭灯的方法有{#blank#}1{#/blank#}种.
4.某商场为了了解毛衣的月销售量y(件)与月平均气温x(℃)之间的关系,随机统计了某4个月的月销售量与当月平均气温,其数据如下表:
月平均气温x(℃) | 17 | 13 | 8 | 2 |
月销售量y(件) | 24 | 33 | 40 | 55 |
由表中数据算出线性回归方程 {#mathml#}{#/mathml#} =bx+a中的b=﹣2,气象部门预测下个月的平均气温约为6℃,据此估计该商场下个月毛衣销售量约为( )件.
5.某商场为了了解毛衣的月销售量y(件)与月平均气温x(℃)之间的关系,随机统计了某4个月的月销售量与当月平均气温,其数据如下表:
月平均气温x(℃) | 17 | 13 | 8 | 2 |
月销售量y(件) | 24 | 33 | 40 | 55 |
由表中数据算出线性回归方程 {#mathml#}{#/mathml#} =bx+a中的b=﹣2,气象部门预测下个月的平均气温约为6℃,据此估计该商场下个月毛衣销售量约为( )件.
6.已知数列{an},{bn}满足a1=1,a2=2,b1=2,且对任意的正整数i,j,k,l,当i+j=k+l时,都有ai+bj=ak+bl,则 {#mathml#}{#/mathml#} 的值是( )
7.已知向量 {#mathml#}{#/mathml#} , {#mathml#}{#/mathml#} 满足| {#mathml#}{#/mathml#} |=1, {#mathml#}{#/mathml#} =(1,﹣ {#mathml#}{#/mathml#} ),且 {#mathml#}{#/mathml#} ⊥( {#mathml#}{#/mathml#} + {#mathml#}{#/mathml#} ),则 {#mathml#}{#/mathml#} 与 {#mathml#}{#/mathml#} 的夹角为( )
2.单项选择- (共11题)
9.
When he was driving home, he was stopped by the policeman and was ________of speeding.
A.charged | B.blamed |
C.accused | D.warned |
10.
I don’t like people who try to _______ you with how much money they’ve got.
A.impress | B.show | C.press | D.strengthen |
11.
She was the first woman________to the board.
A.to be appointed | B.having been appointed |
C.appointing | D.to appoint |
12.
China is a wonderful land ______ minerals.
A.is abundant in | B.abundant in | C.in abundant | D.is in abundant |
13.
It is ___________ that theQing Tombs are influenced by the Ming Tombs, especially architecture and the way they are placed among the surrounding mountains and valleys.
A.apparent | B.fragile | C.clumsy | D.imperial |
15.
______ the cold, thin air and low oxygen levels also can cause mountain sickness.
A.On behalf of | B.Apart from | C.In terms of | D.Except for |
16.
—Was ______ Bill, ______ played basketball very well, ______ helped the blind man cross the road?
—Yes, of course. He is always ready to help others.
—Yes, of course. He is always ready to help others.
A.it; that; who | B.this; who; that | C.which; that; that | D.it; who; that |
17.
—Where did you lose your bicycle?
—It was in the playground______I played basketball.
—It was in the playground______I played basketball.
A.that | B.where | C.which | D.when |
18.
I don't know the reason ______ you were absent from the meeting, but I'm sure someone will tell me the reason ________ you haven't told me.
A.why; that | B.that; why |
C.Because; which | D.of which; that |
试卷分析
-
【1】题量占比
选择题:(8道)
单项选择:(11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:3
5星难题:0
6星难题:7
7星难题:0
8星难题:0
9星难题:0