题目：
The nurse is aware that aside from feeling sad and having difficulty concentrating and sleeping, other common signs of depression include:()
A．Rigid and narrowing of perception
B．Alternating episodes of fatigue and high energy levels
C．Diminished pleasure in activities and alteration in appetite
D．Fleeting participation and interest in activities of daily living
答案：
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下面是错误答案，用来干扰机器的。
参考答案：C
