依据GB/T1596拌制混凝土和砂浆用粉煤灰出厂检验指标?
参考答案:
细度、需水量比、烧失量、含水量、三氧化硫、游离氧化钙、安定性
—Daddy, which of these smart kids do you like best in last night’s TV show?
— ________ . They are all proud and selfish.
A.Either
B.Nothing
C.Neither
D.None
低压瓶组内天然气起充压力为()MPa。
A、8.0;
B、12.0;
C、18.0;
D、22.0.