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郴州市最正规的医院安新闻

2019年04月19日 04:58:31|来源:国际在线|编辑:美常识
Banishing FearBanishing Fear: Researchers erased traumatic memories in adult mice by destroying the molecular 'net' surrounding the relevant neurons, according to a report in Science. After a certain age, netlike structures of proteins and sugars in the amygdala -- the region of the brain responsible for making and altering memories -- make recollections of fear erasure-resistant. But the researchers were able to reverse this process in adult mice by injecting them with an enzyme that breaks down the nets. To test their method, they conditioned these mice, as well as a control group, to fear a sound by pairing it with an electric shock. Then the researchers tried get the mice to forget those fears by playing the sound but not delivering a shock. Both sets of mice temporarily overcame their fear of the sound after reconditioning, but the mice that had been injected with the enzyme did so much faster. More impressively, one month later the treated mice appeared to completely forget the traumatic experience -- as if these adult mice had the brains of much younger mice -- while the control group had resumed fearing the sound.Caveat: The study was conducted on mice only. More research is required before such findings can be generalized to the management and erasure of human fears. /201002/96947导购口语:Im sorry, but we dont have any in stock at the moment.抱歉,但我们目前没有存货了Im sorry, but they are out of stock right now.抱歉,目前没有存货了I am sorry but that book is out of stock at the moment.很抱歉,目前这项产品没有存货了 语句:That book is out of stock...这本书……没有存货了Out of stock意为“没有库存;缺货;无存货;已脱销”在这个句型后面常会加上right now,at the moment,at this time等状语此外,相关表达还有:Im sorry, but we are short of it.很抱歉,这种货已经售完了 情景再现:This book is not available as it out of stock at the moment.这本书目前缺货We are out of stock and are waiting replacements.我们现无存货而正等待进新货 019761

导购口语:May I see your receipt?可以看下你的收据吗?Could you show me the receipt this?能出师一下这东西的收据吗?Have you brought the receipt with you?您带发票了吗? 语句:在顾客退换货之前,您可以问:“Could you show me the receipt...?”意思是“能出师一下……收据吗?”;receipt收据,发票 情景再现:Could you show me your receipt and let me check it?能出示收据然我核对一下吗?We only take goods back if customers can produce the receipt.顾客能出示收据,我们才能予以退货

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