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A．John is more likely to develop lung cancer.B．Mary is more likely to develop lung cancer.C．John and Mary have the same chance to develop cancer.D．Neither John nor Mary has the chance to develop cancer.
A．John is more likely to develop lung cancer.
B．Mary is more likely to develop lung cancer.
C．John and Mary have the same chance to develop cancer.
D．Neither John nor Mary has the chance to develop cancer.
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