八年级英语周报8期人教版答案

书面表达One possible versionDear PeterI'm writing to invite you to see the Chinese Painting Exhibition to be held in our city.The exhibition will start at 8: 30 am on Saturday and last till 5: 00 pm on Sunday in the city museum It'ssaid that a large number of Chinese paintings, some of which are original works by famous painters like ZhangDaqian and Qi Baishi, will be on display. Besides, there will be various souvenirs to be sold. I know you re veryinterested in traditional Chinese culture, so I can t wait to tell you the news and hope we can go together.Looking forward to your reply.You

1.【解析】如图所示,因为圆E(x-a)+=所以AE=R=,又因为△ABO为等边三角形,所以31an30°-E.得OE=3-1,所以2=1,即p=2,所3以抛物线M:y2=4x,所以C(1,2),F(1,0),作点C关于准线l的对称点C1,则C1(-3,2),所以|PF|PC|=|PF|+|PC1|≥|C1F|=√16+4=25.故选B.

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