Which of the following is NOT a symptom of insomnia？A．They can"t sleep as much as they try
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Which of the following is NOT a symptom of insomnia？
A．They can"t sleep as much as they try.
B．They have a true sleep disorder.
C．They can"t sleep enough because of the health condition.
D．They don"t have time to sleep.
请帮忙给出正确答案和分析，谢谢！