单项选择题
Passage 2Italians smoke seven thousand million cigarettes every year （）and low tar tobacco
are claimed to make smoking to some extent safer, but they can only marginally reduce, not eliminate the hazards.7. What conclusion can we draw after reading this article？A．The effect of cigarette smoking on health is not so much．B．Smokers would often die from lung cancer．C．We should not neglect the bad influence of smoking, so don’t smoke or don’ t start to．D．More and more physicians and research workers are less sure of the effect of cigarette smoking on health．
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