【单选题】Which statement about composite is NOT TRUE according to the tex?
A.
A composite is composed of two or more individual materials.
B.
A composite combines the properties not displayed by any single material.
C.
A Composite incorporates the best characteristics of each of the component materials.
D.
Naturally-occurring materials such as wood and bone are not composites.
【单选题】低血糖时首先受影响的器官是( ),因此,运动时低血糖会引起神经中枢疲劳。
【判断题】防护镀层根据防护机理可分为阴极型镀层和阳极型镀层
【简答题】KeiL C51 软件中, 文本 文件的扩展名是 ___ _______ ,编译连接后生成可烧写的文件扩展名是 ___ _________ 。
【判断题】防护镀层根据防护机理可分为阴极型镀层和阳极型镀层