题目内容
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[主观题]
______ is not the advantage ofpolymer matrix composites. A) Decrease in thermal expansion and creep
______ is not the advantage ofpolymer matrix composites.
A) Decrease in thermal expansion and creep rate.
B) Increase in impact strength and dimensional stability.
C) Containing a good balance of properties
D) Environmental degradation is greater than that experienced by either component material alone.
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