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【单选题】
可以预防夜盲症的 维生素是
A.
维生素 B
B.
维生素 C
C.
维生素 D
D.
维生素 A
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举一反三
【单选题】What's the author's implied opinion?
A.
Children should not watch violent television shows.
B.
At-risk children should have a steady diet.
C.
Society should take greater care of young adults.
D.
The characters in TV shows should be heroes in real life.
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【单选题】函数y=2sinx经过怎样的变换可得到y=2sin3x的图像? ( )
A.
y轴方向放大为原来的2倍。
B.
x轴方向放大为原来的3倍。
C.
y轴方向放大为原来的1/2倍。
D.
x轴方向放大为原来的1/3倍。
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【简答题】What is implied by the author?
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【单选题】What is implied but NOT stated in the first paragraph is that______.
A.
Sciences-Po's academic mismanagement has drawn national attention
B.
President Frangois Hollande was the student of Sciences-Po
C.
Sciences-Po attracts excellent students and employees
D.
Richard Descoings was the previous head of Sciences-Po
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【单选题】将函数y=sinx图像( )变换得到 函数y= sinx图像
A.
纵坐标不变，横坐标缩小到原来的 倍
B.
纵坐标不变，横坐标扩大到原来的2倍
C.
横坐标不变，纵坐标扩大到原来的2倍
D.
横坐标不变，纵坐标缩小到原来的 倍
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【多选题】将 y=sinx 的图像 经过怎样的变换可以得到 的图像?请选出正确选项( )
A.
先将 y=sinx 的图像上每个点的横坐标变为原来的 2 倍，再向右平移 个单位，然后纵坐标变为原来的 3 倍，最后向下平移 1 个单位
B.
先将 y=sinx 的图像上每个点的横坐标变为原来的 倍，再向左平移 个单位，然后纵坐标变为原来的 3 倍，最后向下平移 1 个单位
C.
先将 y=sinx 的图像上每个点的横坐标变为原来的 倍，再向右平移 个单位，然后纵坐标变为原来的 3 倍，最后向上平移 1 个单位
D.
先将 y=sinx 的图像上每个点的纵坐标变为原来的 3 倍，再向上平移 1 个单位，然后向右平移 个单位，最后将横坐标变为原来的 倍
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【单选题】将函数y= sinx 经过( )得到y= sinx的图像
A.
横坐标不变，纵坐标扩大 3 倍
B.
纵坐标不变，横坐标扩大 3 倍
C.
横坐标不变，纵坐标缩小 倍
D.
纵坐标不变，横坐标缩小 倍
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【单选题】In the following, what is implied based on the professor's description?
A.
In Denmark, a visitor should take an unusual delicacy or flowers to business associates.
B.
In Denmark, a visitor should bring costly delicacies to business associates.
C.
In France, guests send flowers before visits, especially chrysanthemums.
D.
In France, guests shouldn't send chrysanthemums which are for funerals.
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【单选题】What's implied in the sentence 'The computer is a technology-driven device made by technologists for technologists who don't know any better'?
A.
It's hard to define the computer.
B.
Technologists don't know much about the computer.
C.
Technology is ever changing.
D.
The computer is hard to use.
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【单选题】将 函数 y=sinx 的图像经过( )得到 y=4sinx 的图像
A.
横坐标不变，纵坐标扩大 4 倍 .
B.
纵坐标不变，横坐标扩大 4 倍
C.
横坐标不变，纵坐标缩小 倍
D.
纵坐标不变，横坐标缩小 倍
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相关题目：
【单选题】What's the author's implied opinion?
A.
Children should not watch violent television shows.
B.
At-risk children should have a steady diet.
C.
Society should take greater care of young adults.
D.
The characters in TV shows should be heroes in real life.
查看完整题目与答案
【单选题】函数y=2sinx经过怎样的变换可得到y=2sin3x的图像? ( )
A.
y轴方向放大为原来的2倍。
B.
x轴方向放大为原来的3倍。
C.
y轴方向放大为原来的1/2倍。
D.
x轴方向放大为原来的1/3倍。
查看完整题目与答案
【简答题】What is implied by the author?
查看完整题目与答案
【单选题】What is implied but NOT stated in the first paragraph is that______.
A.
Sciences-Po's academic mismanagement has drawn national attention
B.
President Frangois Hollande was the student of Sciences-Po
C.
Sciences-Po attracts excellent students and employees
D.
Richard Descoings was the previous head of Sciences-Po
查看完整题目与答案
【单选题】将函数y=sinx图像( )变换得到 函数y= sinx图像
A.
纵坐标不变，横坐标缩小到原来的 倍
B.
纵坐标不变，横坐标扩大到原来的2倍
C.
横坐标不变，纵坐标扩大到原来的2倍
D.
横坐标不变，纵坐标缩小到原来的 倍
查看完整题目与答案
【多选题】将 y=sinx 的图像 经过怎样的变换可以得到 的图像?请选出正确选项( )
A.
先将 y=sinx 的图像上每个点的横坐标变为原来的 2 倍，再向右平移 个单位，然后纵坐标变为原来的 3 倍，最后向下平移 1 个单位
B.
先将 y=sinx 的图像上每个点的横坐标变为原来的 倍，再向左平移 个单位，然后纵坐标变为原来的 3 倍，最后向下平移 1 个单位
C.
先将 y=sinx 的图像上每个点的横坐标变为原来的 倍，再向右平移 个单位，然后纵坐标变为原来的 3 倍，最后向上平移 1 个单位
D.
先将 y=sinx 的图像上每个点的纵坐标变为原来的 3 倍，再向上平移 1 个单位，然后向右平移 个单位，最后将横坐标变为原来的 倍
查看完整题目与答案
【单选题】将函数y= sinx 经过( )得到y= sinx的图像
A.
横坐标不变，纵坐标扩大 3 倍
B.
纵坐标不变，横坐标扩大 3 倍
C.
横坐标不变，纵坐标缩小 倍
D.
纵坐标不变，横坐标缩小 倍
查看完整题目与答案
【单选题】In the following, what is implied based on the professor's description?
A.
In Denmark, a visitor should take an unusual delicacy or flowers to business associates.
B.
In Denmark, a visitor should bring costly delicacies to business associates.
C.
In France, guests send flowers before visits, especially chrysanthemums.
D.
In France, guests shouldn't send chrysanthemums which are for funerals.
查看完整题目与答案
【单选题】What's implied in the sentence 'The computer is a technology-driven device made by technologists for technologists who don't know any better'?
A.
It's hard to define the computer.
B.
Technologists don't know much about the computer.
C.
Technology is ever changing.
D.
The computer is hard to use.
查看完整题目与答案
【单选题】将 函数 y=sinx 的图像经过( )得到 y=4sinx 的图像
A.
横坐标不变，纵坐标扩大 4 倍 .
B.
纵坐标不变，横坐标扩大 4 倍
C.
横坐标不变，纵坐标缩小 倍
D.
纵坐标不变，横坐标缩小 倍
查看完整题目与答案