不宜用于空气消毒的方法有（）。
A.甲醛熏蒸
B.紫外线消毒
C.层流通风
D.臭氧消毒
E.静电吸附式空气消毒器层流通风
参考答案：E
生姜与半夏同用，是运用药物“七情”配伍中的哪些配伍（）。
A.相须
B.相使
C.相畏
D.相杀
E.相恶
A child, age 5, with an IQ of 65 is admitted to the hospital for evaluation. When planning care, the nurse should keep in mind that this child is
A．within the lower range of normal intelligence.
B．mildly retarded but educable.
C．moderately retarded but trainable.
D．completely dependent on others for care.
