—Must you play that music so loud, uh? I’ve got an interview tomorrow!

—Terribly sorry, buddy. I ______ you could hear it.

A．don’t realize

B．was not realizing

C．didn’t realize

D．must have realized

贫血患者临床上考虑是否需要输血的因素不包括（）。

A.患者贫血程度

B.心肺代偿功能

C.有无代谢率增高

D.年龄

E.性别