单项选择题

A．Stop thinking about the matter.
B．Talk the drug user out of the habit.
C．Be more friendly to his schoolmate.
D．Keep his distance from drug addicts.
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单项选择题
What is the relationship between the color of the tomatoes and lycopene
A．The light red tomatoes do not contain lycopene.
B．The darker green and yellow the tomato is, the less lycopene it contains.
C．The lighter red the tomato, the less lycopene it contains.
D．Green and yellow tomatoes contain less lycopene.
单项选择题
According to the author, the introduction of the computer is a revolution mainly because______.
A．the computer has revolutionized the workings of the human mind
B．the computer can do the tasks that could only be done by people before
C．it has helped to switch to an information technology
D．it has a great potential impact on society
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