题目内容
(请给出正确答案)
[主观题]
Directional plans ________.
A、leave no room for interpretation
B、are flexible general guidelines
C、are difficult to modify
D、must be short-term plans
提问人:网友icezj52
发布时间:2022-01-07
A、leave no room for interpretation
B、are flexible general guidelines
C、are difficult to modify
D、must be short-term plans
A.Directional
B.Ionic
C.Non-directional
D.Covalent
Directional properties in fiber composites are achieved mainly due to ______.
A.fiber orientation B.laminate plane C.interphase D.prepregs
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