单项选择题

A．It sends out signals for help.
B．It sounds an alarm to warn the driver.
C．It takes over the driving immediately.
D．It stops the car automatically.
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单项选择题
A．Breakfast timeB．Lunch timeC．Dinner timeD．D ) Snacking time
A．Breakfast time
B．Lunch time

C．Dinner time
D．D ) Snacking time
单项选择题
A．Talk less.B．Change the surroundings.C．Eat food of good quality.D．Take plenty of exercise.
A．Talk less.
B．Change the surroundings.
C．Eat food of good quality.
D．Take plenty of exercise.
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