第二节One possible version:When everything was done on the computer, I appreciatedmy work proudly. Then I watched both poems passing through theprinter, the white paper coloring with words that shaped mychildhood. These poems reminded me of my childhood that mydad spent with me. I felt that this was a gift that my dad wouldtruly appreciate, though it was cheap I was looking forward tothe dayMy dad s birthday soon arrived, and our family sat together tocelebrate it. I took out my gift and passed it to my dad. The minuteI saw the look on my dad's face as he opened those letters carefullyplaced in a cheap frame, I knew I had given the perfect gift. Mydad hugged me and said this was the best gift that he had receivedand thanked me for remembering the wonderful moments that weshared together, and we recited the poems together

10.A解析:据甲图可知,相同生长素浓度变化使根产生生长效应的变化比芽的大,说明根对生长素比芽敏感,A正确:a处的生长素浓度高于b处,a、b处为伸长区,是生长素产生效应的部位,感受重力刺激的部位应在远离a点的根尖顶端,B选项错误:生长素的合成不受重力等因素影响,C错误:在胚芽,生长素只能从尖端向尖端以下部位进行极性运输,而不能倒过来运输,D选项错误。

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