冲天炉熔炼时，熔化速度快，铁水温度低，应采取（）措施。
A.减小焦量
B.加大风量
C.增加焦量减小风量
D.减小焦量加大风量
参考答案：C
大体积混凝土夏季施工宜用（）型减水剂；寒冷条件下施工宜用（）型减水剂；水下混凝土、（）混凝土宜用泵送减水剂。
Could I do some explanations? I ________ to call on you yesterday, but someone came to see me just
when I was about to leave.[ ]
A. had intended
B. intended
C. would intend
D. was intending
