20英语周报八年级40答案

Paragraph 1On Monday morning, hiding behind the window, wesoon saw what we were waiting for. It turned out that there They were too funny as they hopped away holding theirwere three of them from our school. They sneaked up on injured feet. We just couldn't contain our happiness andour snowman and sneered. Taking their places on either i excitement. With a hearty laugh, we came out of hidingside, they pulled back their legs to deliver powerful kicks. and sprang into the yard from inside the house. " An eye forBut the moment they hit the hard ice block of the base,. an eye! Justice done! "We yelled behind them. And thatsneers turned into shock, then agony and tears. They was the end of our problems with the snow bullies. Everhowled and cursed, gritting their teeth and stomping their i since then, our snowman was kept guarded and intact untilhappily melted into spring water and finally wove into ourParagraph 2sweetest childhood memoriesSeeing their pained looks, we couldn t help laughing

16.-8,可靠【解析】x=1×(11 13 12)=12,y1×(26 32 26)=28.又y=bx a,b=3,∴;a328-3×12=-8,∴线性回归方程为y=3x-8.取x=10,得y=22,23-22|=1;取x=8,得y=1616-16|=0<1.由此可知,求得的线性回归方程可靠

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