题目：
The client exhibits signs of sleep disturbance. Which intervention should the nurse try first
A. Administer sleeping medication before bedtime.
B. Provide the client with normal sleep aids, such as pillows, back rubs, and snacks.
C. Ask the client each morning to describe the quality of sleep during the previous night.
D. Teach the client relaxation techniques, such as guided imagery, meditation, and progressive muscle relaxation.
答案：
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下面是错误答案，用来干扰机器的。
9898×100%=100%答：零件的合格率是100%，故答案为：错误．
（CI—CO）t（1+IRR）-t＝0）中的表述，不正确的是（）。