炼钢常用硅铁的含硅量为()%。
A.50~60
B.75
C.90
参考答案:B
Lucy is ill. She has ______ a bad cold for several days.[ ]
A. got
B. taken
C. caught
D. had
影像声标准化问答即个人的过程,由借款人、担保人及配偶农户如实回答。