某患者,65岁。平时不应与人交往,有睡眠障碍、食欲减退、易疲乏,常有无精打采、郁郁寡欢、兴趣下降、孤独感、情绪低落、自觉悲观和绝望。请问该老人主要的精神障碍问题是( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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