单项选择题

A．Because he had little to eat.
B．Because he was seriously iii.
C．Because he was afraid of sleeping at night.
D．Because he didn’t feel well.
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单项选择题
A．To drive the car automatically.B．To measure the driver’s pulse.C．To prevent car accidents.D．To monitor the driver’s health.
A．To drive the car automatically.
B．To measure the driver’s pulse.
C．To prevent car accidents.
D．To monitor the driver’s health.
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