人工和灰配浆：水泥浆密度要在施工现场配制水泥浆的过程中使用（）直接测定。
A、温度计
B、粘度计
C、密度计
D、流量计
参考答案：C
_______, you need to give all you have and try your best.
A．Being a winner.
B．To be a winner
C．Be a winner
D．Having been a winner
特权规则
