单项选择题

According to the passage, static electricity can be caused by ______.

A．washing machines
B．wearing clothes made of natural materials
C．walking on artificial floor coverings
D．listening to the tape recorder
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单项选择题
According to the passage, the risk of prostate cancer would be lowered by ______ among those who consumed raw tomatoes more than once a day.
A．21 to 34 percent
B．30 to 60 percent
C．21 to 30 percent
D．34 to 60 percent
单项选择题
In order for lycopene to be absorbed by the body, ______.
A．it must be consumed with a certain amount of fat
B．you should consume dark red tomatoes
C．you should eat raw tomatoes
D．you should consume watermelon and pink grapefruit except tomatoes
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