1.选择题- (共7题)
1.设0≤θ≤2π,向量 {#mathml#}{#/mathml#} =(cos θ,sin θ), {#mathml#}{#/mathml#} =(2+sin θ,2﹣cosθ),则向量 {#mathml#}{#/mathml#} 的模长的最大值为( )
2.设0≤θ≤2π,向量 {#mathml#}{#/mathml#} =(cos θ,sin θ), {#mathml#}{#/mathml#} =(2+sin θ,2﹣cosθ),则向量 {#mathml#}{#/mathml#} 的模长的最大值为( )
3.设0≤θ≤2π,向量 {#mathml#}{#/mathml#} =(cos θ,sin θ), {#mathml#}{#/mathml#} =(2+sin θ,2﹣cosθ),则向量 {#mathml#}{#/mathml#} 的模长的最大值为( )
4.
在△ABC中,内角A,B,C对边的边长分别是a,b,c,已知c=2,C= .
(Ⅰ)若△ABC的面积等于 ,求a,b;
(Ⅱ)若sinC+sin(B﹣A)=2sin2A,求△ABC的面积.
5.已知 {#mathml#}{#/mathml#} , {#mathml#}{#/mathml#} 的夹角为120°,| {#mathml#}{#/mathml#} |=2,| {#mathml#}{#/mathml#} |=3,记| {#mathml#}{#/mathml#} =3 {#mathml#}{#/mathml#} ﹣2 {#mathml#}{#/mathml#} , {#mathml#}{#/mathml#} =2 {#mathml#}{#/mathml#} +k {#mathml#}{#/mathml#} .
2.单项选择- (共7题)
8.
As teachers, we feel our duty to teach our children to be good wherever we are.
A.this | B.that | C.it | D.there is |
9.
If he can his natural ability with hand work, he should be very successful.
A.combine | B.connect | C.link | D.join |
11.
What he said just now _____ me of that American professor.
A.mentioned | B.informed | C.reminded | D.memorized |
12.
__many times, he still didn’t make sense of it.
A.Having been told | B.Then he was told |
C.Being told | D.He was told |
13.
——Let’s go out for dinner tonight.
——OK. It doesn’t matter to me _____ we eat.
A.whether B. where C. why D. when
——OK. It doesn’t matter to me _____ we eat.
A.whether B. where C. why D. when
试卷分析
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【1】题量占比
选择题:(7道)
单项选择:(7道)
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【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:6
7星难题:0
8星难题:1
9星难题:0