正解:Some people believe children in secondaryschool should study international news as a subject. However, others think that’s a waste of time. 或:Some people believe chi...
6. A)heavy smokers B)passive smokers C)those who never smoke D)those who quit smoking 7. A)the growing number of smokers among young people B)the rising proportion of minorities in its population C)the increasing consumption of high-calorie foods ...
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