牛津高中英语模块2的第1单元reading课文 原文
题目
牛津高中英语模块2的第1单元reading课文 原文
答案
Boy missing,police puzzled
Police in america have stepped up their search for a fifteen-year--old boy who went missing two days ago in Dover,Now Hampshire,People have shown great interest in his disappearance due to sightings of puzzling lights in the sky and reports of alien visits around the time of his disappearance.
Justin Foster,a high school student,went missing last Friday night.At first,Justin’s mother,who went to sleep early that evening because of a headache,thought that the teenager was spending the night with a friend.Mr Foster ,who was working that night,was surprised that his son did not tell anyone that he was staying out late.When Justin did not show up at the family lunch the next day,Mrs Foster became worried and told her husband to call the police.
However,police found that Justin did in fact return home on Friday night at about 11 p.m,That evening at 8 p.m.,Justin left home to play baseball with two friends,who both say Justin went home after the game.Witnesses also say they saw Justin walking towards his home at 10.45p.m.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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