78 一材料之彈性模數(elastic modulus)是指:
(A)單位應力(stress)之應變(strain)
(B)單位應變(strain)之應力(stress)
(C)形變(deformation)與受力之比值
(D)受力與形變(deformation)之比值
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統計: A(27), B(30), C(16), D(13), E(0) #605087
統計: A(27), B(30), C(16), D(13), E(0) #605087