The sense of mistrust is compounded by smaller annoyances that leave the families feeling as though no one in authority cares about them.

A．offset

B．intensified

C．diminished

D．annulled

水泥胶砂搅拌时，下列不属于标准规定三个搅拌阶段的是（）。

A、先低速搅拌60S（包括加砂），加完砂后低速搅拌30S后停拌

B、先低速搅拌60S（包括加砂），加完砂后高速搅拌30S后停拌

C、停拌90S

D、最后高速搅拌60S