单项选择题

According to the passage, insufficient sleep is harmful in that it can cause all BUT ________of the following.

A．poor eyesight
B．premature aging
C．odd behavior
D．loss of orientation
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单项选择题
By saying insomnia is caused by life (Para. 3), the author means that________.
A．any human being may be down with insomnia
B．any style of life can lead to insomnia
C．any fragment of life can cause insomnia
D．any day of life can result in insomnia
单项选择题
Which of the following is NOT true of looser divorce laws
A．They seem to be effective in reducing domestic violence.
B．They may have prevented some murders.
C．They may have led to a decline in female suicide.
D．They brought about a decrease in the divorce rate.
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