进行规模估算时，需要综合考虑（）和（）的估算结果。
参考答案：覆盖；容量
— Is the meeting held in Room 302 or 303 ?
— It should be 302. But I hear that it _____ till tomorrow.
A．was put off
B．will put off
C．has been put off
D．is put off
老年男性，近期出现头晕、恶心、一侧听力下降，为进一步明确诊断，首先行哪种影像学检查（）
A.X线
B.MRI
C.CT
D.B超
E.PET／CT
