复合材料（Composite materials）的概念是由（）或（）不同性质的材料，通过物理或化学的方法，在宏观上组成具有新性能的材料。
复合材料（Composite materials）的概念是由（）或（）不同性质的材料，通过物理或化学的方法，在宏观上组成具有新性能的材料。
相关考题：
Which of the following materials is not appropriate for a teacher to use in listening practice?A.Materials with different dialects.B.Comprehensible authentic materials.C.Materials with comprehensible new words for students.D.Materials with contents beyond students’ comprehension capacity.
单选题By saying “raw materials do not exist, they are created” the author means _____.Athat there will be no more raw materials on the earth some time later, and man will have to create materials by themselvesBthat it is use that makes raw materials valuableCthat people have created various useful materials by using their intelligence and wisdomDhuman creativity is amazing
填空题碳/碳复合材料是由碳纤维增强体与碳基体组成的复合材料，简称（）。