题目内容
(请给出正确答案)
[主观题]
彩色由哪三个特性构成?分别简述三个特性。
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第3题
Brittle materials have which of the following characteristics( )
A.they undergo a lot of permanent deformation before fracturing
B.they tend to have a very ordered atomic structure
C.they respond poorly to tensile forces
D.A and B
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