The driver was at _____ loss when ______ word came that he was forbidden to drive for speeding.[ ]

A. /;the

B. a; the

C. /; /

D. a; /

钢中Ca/Als的控制，成品要求Als≥0.03%，（如SPHC、SPHD等）连浇炉次执行以下标准（）。

A.0.03-0.05

B.0.03-0.06

C.0.04-0.06

D.0.05-0.08