水泥安定性检验、目测，用直尺检查，发现饼试样结果不一样，该判定此水泥安定性为不合格。
参考答案：对
_____ twelve, Mike started his first novel. [ ]
A. In the age of
B. At his age of
C. At her age of
D. In his age of
网络信息流动是单向的，互动的，从而真正实现了网上信息的“推———拉”过程。
