We can consider the properties of a material in two categroies—chemical and physical. A.正确B.错误 正确答案：错误

Structurally, most polymeric materials are crystalline, but some consist of mixture of crystalline and noncrystalline regions. A.正确B.错误 正确答案：错误

Many of the common characteristics of material within a category araise from the lowest level of the structure, the nature of the atomic bond that hold them together. A.正确B.错误 正确答案：正确

The term processing refers to how materials are made from naturally occurring or man-made chemical. A.正确B.错误 正确答案：错误

Atomic level structure involves electrons within the individual atoms and interactions with their nuclei. A.正确B.错误 正确答案：错误

Materials science and engineering（MSE）is an interdisciplinary field concerned with inventing new materials and improving previously known materials by developing the deeper understanding of（）-（）-synthesis -（）-（）relationship A.microstructureB.compositionC.propertiesD.processingE.m … 阅读详情>> "Materials science and engineering（MSE）is an interdisciplinary field concerned with inventing new materials and improving previously known materials by developing the deeper understanding of（）-（）-synthesis -（）-（）relationship"

are non capable of being regenerated. A.Solar cellB.Nonrenewable materialsC.Hydrogen fuel cellD.Wind energy 正确答案：Nonrenewable materials

is the direct conversion of solar into electrical energy has been demonstrated. A.new energyB.nuclear energyC.Hydrogen fuel cellD.solar cell 正确答案：solar cell

contain a large percentage of iron such as the steels and cast irons. A.ferrous metal and alloysB.nonferrous metal and alloysC.rare metal and alloysD.precious metal and alloys 正确答案： ferrous metal and alloys

focus on how to translate or transform materials into a useful device or structure. A.material scientistsB.material scientists and engineersC.material engineersD.material　researchers 正确答案：material engineers

Materials are defined as（）used by man to produce items which constitute the support for his living environment. A.resourcesB.substanceC.solidsD.thing 正确答案：solids