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滥用是指______
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精神活性物质是指______
大麻类物质的主要成分是______
耐受是指______
The world is throwing away a shocking amount of food. A report 41 that at least a third of the 4 billion tonnes of food the world produces each year never gets 42 our mouths. Between 30% and 50% of food 43 in Europe and the US is thrown away. Britain—and much of the rich world—has got used to filling the fridge 44 what looks nice, not what it 45 needs. The cost of that 46 is ￡10bn annually. Globally, the cost, in money, energy and ever-scarcer water, is 47 .Our future food security has been 48 the top 10 of current global worries. The 49 of feeding a mid-century planet of around 9 billion people looks 50 without major changes to farming and our diet. If you 51 the United Nations Food and Agricultural Organisation"s call 52 production to be increased by 70% to feed the population of 2050, most of the work will be 53 just by being a bit more thrifty. 54 we have to do is to 55 better what is already there.Throwing food out is easy. 56 , using it sensibly, 57 the less attractive bits, is not. The urge to bin and buy again, 58 by multimillion pound advertising campaigns, is all the less resistible now 59 , despite recent price rises, for most of us, food is cheap. At Christmas, the average family spent just over ￡100 on the big meal, a quarter of 60 it spent on presents.
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