【判断题】【消耗次数：1】
现代颜色视觉理论中的三色学说认为绿（546.nm）、蓝（453.8nm）三种感光细胞组成的，自然界中的任何一种颜色都可以由R、G、B这3种颜色值之和来确定，它们构成一个3维的RGB矢量空间。
①
正确
②
错误
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相关题目
【简答题】
[填空1]就是用两种或两种以上颜色填充的沿一定方向渐进分布的色带，它是从一种颜色逐渐过渡到另一种颜色的方式。
【单选题】
在RGB模式的图像中每个像素的颜色由R、G、B这3个数值来决定，每个数值的范围都是0到255。当R、G、B数值分别为相等、均为255、均为0这3种不同情况时，最终的颜色分别是（ ）。
①
灰色、纯白色、纯黑色
②
偏色的灰色、纯白色、纯黑色
③
灰色、纯黑色、纯白色
④
偏色的灰色、纯黑色、纯白色
【单选题】
广播公司（NBC）的标志是一只多彩的孔雀，标志划由（ ）个色块构成，每个色块利用一种颜色，颜色搭配得很调和，富有韵律感，形成较好的视觉效果。
①
4
②
5
③
6
④
7
随机题目
【单选题】
Never in my life ____ or seen such a thing.
①
I have heard of
②
I had heard of
③
have I heard of
④
did I hear of
【单选题】
—I’m sorry to keep you waiting. —Oh, not at all. I___ here only a few minutes.
①
have been
②
had been
③
was
④
will be
【单选题】
The bus is late and Julie is cold. She____ for the bus for 10 minutes.
①
waits
②
waited
③
has been waiting
④
has waited
【单选题】
Put it down, Richard. You mustnt read ____ letter.
①
anyones elses
②
anyones else
③
anyone elses
④
anyone else
【单选题】
____ the English examination, I would have gone to the concert last Sunday.
①
In spite of
②
But for
③
Because of
④
As for
【单选题】
Every society has its own peculiar customs and____ of acting.
①
attitudes
②
behavior
③
ways
④
means
【单选题】
“She is from Shanghai, ____ population is larger than that of any other city inChina.”
①
its
②
which
③
whose
④
that
【单选题】
Mary: How do you like Professor White’s lecture? John: ____
①
He talked about economy.
②
He teaches Class 2 students.
③
Very much.
④
He is a middle-aged professor.
【单选题】
I will give this dictionary to ____ wants to have it.
①
whomever
②
someone
③
whoever
④
anyone
【单选题】
The mountain is ____ 6.3 kilometers high, but it is not the highest one.
①
nearly
②
near
③
neat
④
neatly