英语周报八年级新目标（CD）答案

参考范文Then, clutching (5mff)the tin can, he headed for the shop. " Ihave the money. " he seriously told the owner. The man went to thewindow and fetched Reubens treasure, He wiped the dust of it andgently wrapped it in brown paper. Then he placed the parcel inReuhen's hands Racing home, Reuben burst through the front door.His mother was cleaning the kitchen stove. "Here, Mom! HereReuben exclaimed as he ran to her side. He placed a small box in herwork-roughened haHis mother unwrapped it carefully, to save the paper. A bluepaper box appeared, and she lifted the lid. In gold lettering on a pair ofred, lambskin gloves was the word Mother. And a card says,"It isMothers Day. We appreciate all the things that Mom does for usThank you! "His mother had never received such a gift; she had nogift except her wedding ring. Spccchlcss, she smiled sweetly andgathered her son into her arms, with tears running down her cheeks.Long live with this happy moment!

15.V2,2(m2-1)【解析】由f(x)=2x2·f(2) nx→f(x)=x·f(2) ,则f(2)=2f(2) 2→f(2)--2,所以f(x)=-x 1x2 2=-(x=√2)(x 2,因为x>0,所以当>2时,∫(x)<0,f(x)单调递减;当0 0,f(x)单调递增,所以f(x)的极大值点为极大值为八2)=-1 m2=1(m2-1)

以上就是英语周报八年级新目标（CD）答案，更多英语周报答案请关注本网站。