铝合金管道保温时，应选用( )。
A．橡胶板
B．石棉绳
C．石棉板
D．玻璃棉
参考答案：A
________ Anirban Maitra, a professor at Oxford University, Jack’s success would not have been possible.
A．If it weren’t for
B．Were it not for
C．Had it not been for
D．If it hasn’t been for
基于软件架构的设计(Architecture Based Software Development，ABSD)强调由商业、质量和功能需求的组合驱动软件架构设计。它强调采用______来描述软件架构，采用______来描述需求。
A．类图和序列图 B．视角与视图 C．构件和类图 D．构件与功能
