如图，在梯形ABCD中，AB与CD平行，且CD=2AB，点E，F分别是AD和BC的中点，已知阴影四边

吸烟的危害有吸毒的大吗?有的国家禁毒 有的国家用政府资金来给有毒瘾的人定期发放适量毒品 他们是对还是错 政治考题吸烟与吸毒的危害和关联 吸烟有害健康!吸烟等于吸毒”dwp .小学生要初步了解吸烟、酗酒等不良习惯的危害,知道吸毒是（ ）的行为. It is a f Sunday mornin.fine还是funny 完形填空 It's Sunday.__is a fine day.The sky is__.Mr.Green is__his family are having an outing.It's Sunday.__is a fine day.The sky is__.Mr.Green is__his family are having an outing.Tom is Mr.and MRS.Green's son.Marry is__daughter.They are__along It is a fine day 的歌词!It is a fine day 英语翻译Children are asked to do some work around their house．And in many families,children are paid for doing some housework so that they learn how to make money for their own. 英语翻译 英语翻译人生是一场无结果的试验.因为无结果,所以怎样试验都无妨.也因为无结果,所以怎样试验都不踏实.学会孤独,学会与自己交谈,听自己说话,——就这样去学会深刻.当然前提是：如果孤 is such that Israel has no negotiating partner in Gaza and the enmity between Hamas and the Fatah-led Palestinian Authority in the West Bank is such that President Abbas has privately urged Israel not to contemplate such a move.中is such such is sth that...有什么具体用法吗？ 风潇兮易水寒什么意思 Such is …… that…… 如次……以至于…… 的结构是什么麻烦分析一下这个结构,并提供一个例句,但是没有多少悬赏分了,望高抬贵手.附加一句，此结构是否为：如此……以至于…… 的意思？ 风萧兮易水寒 是什么意思啊 Everything that you feel is Everything that I 风萧兮兮易水寒是哪首词的词句? 风箫兮兮易水寒的意思是 英语翻译你务必要改掉开会迟到的坏习惯（get rid) 四级阅读提高用什么材料练习四级阅读问题.我女朋友考了两次了.还没过.其中阅读只能得一半的分.我替她着急想再来一次我决定先从阅读入手.她也不是不努力单词也背了.真题也做了但她跟 我爱漂亮女孩 英文是什么意思 谁能告诉我谢谢 提问：四级阅读题?Robert foss,a scientist at the University of North Carolina Highway Safety Research Center,says the higher death rates for teenage drivers have less to do with "really stupid behavior" than with just a lack of driving experie 新中国建立到改革开发前称为什么时期? 为新中国成立做准备会议名称是什么 新中国成立后参与的战争,要英语名称 老舍在新中国成立后被授予什么称号 品德与社会的英语单词怎么写?还有地方课程的英语单词怎么写?谁回答了，我给他多点赏分 英语翻译officer:You were speeding.Man:No,I wasn't ,I am driving 50 km/per hour.officer:You were driving too fast.I'm giving you a ticket.Man:But I wasn't speeding.officer:Tell that to the judge (The officer gives man the ticket.)Man:Would I get a 英语翻译Transportation in JapanJapan has a modern transportation system.Trains are the best way to travel in Japan.Japan Railways has nearly all trains including the night trains and the bullet trains.Bullet trains are very fast,they can go300k k 品德与社会 英语单词是什么 英语翻译 请问这道四级阅读题选什么?But in the long run to much specialization doesn't pay off.Business which has been flooded with MBA's,no longer considers the degree an automatic samp of approval.The MBA may open doors and command a higher salary