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【简答题】
人在区分颜色时常用的三种基本特征量为亮度、色调和饱和度。其中______与一定色调的纯度有关，饱和度越大的颜色看起来越鲜艳。
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反馈参考答案：
举一反三
【简答题】“A lot of learning comes through play,” says Mardy McGarry, 52, who has been a special education teacher for 28 years. But her students were too often left out. She had seen the wood chips and sand of...
【单选题】A lot of language learning ,_______has been discovered, is happening in the first year of life, so parents should talk much to their children during that period .
A.
as
B.
it
C.
which
D.
this
【单选题】From the passage we can learn that online learning has become 'hot' because______.
A.
a lot of students like its flexibility and convenience
B.
it doesn't require classrooms or other on-site facilities
C.
everybody wants to be a part of it
D.
more teachers start teaching online
【单选题】My sister has a lot of trouble ______ maths.
A.
to learn
B.
learning
C.
learned
D.
learns
【单选题】A lot of language learning，________ has been discovered，is happening in the first year of life，so parents should talk much to their children during that period.(2012·安徽，29)
A.
as
B.
it
C.
which
D.
this
【单选题】听力原文：W: I'm learning a lot in my hotel management class. Have you ever taken any courses in that department? M: Only the one last year, none since then. What does the man mean?
A.
He has a friend who majored in hotel management.
B.
He hasn't taken more than one hotel management course.
C.
He's been learning a lot this year, too.
D.
He couldn't make any sense out of this course.
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