缓凝剂不宜用于最低气温在()以下的混凝土施工。
参考答案:+5℃
While talking with his colleagues, he accidentally ________ that he had got divorced. [ ]
A. let out
B. gave out
C. turned out
D. brought out
排放气压缩机压缩比过大会造成()
A、排出温度低
B、排出温度高
C、排出压力高
D、排出气量大