题干

研究表明,某些植物在秋冬受低温袭击时,呼吸速率先升高后降低;持续的冷害使根生长迟缓,吸收能力下降,但细胞内可溶性糖的含量有明显的提高.下列推断不合理的是(  )

A:冷害初期呼吸作用增强,放出的热量有利于抵御寒冷

B:低温持续使淀粉合成酶活性减弱,影响可溶性糖合成淀粉

C:低温使细胞内结合水含量降低,自由水含量增加,以适应低温环境

D:低温使根细胞呼吸减弱,限制根细胞吸收矿质营养,导致吸收能力下降

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C

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      A couple of weeks ago, I made a trip to Toronto with my granddaughter who just turned three years old. The two of us were on our way to  1   her parents, and my wife—her  2    who had been gone for over a week. We were all anxious to  3    again and as I pulled out of Mamere and Papere's driveway in Chelmsford, Hailee and I were both  4    about the trip and couldn't wait to arrive at our   5.

When we completed the “SEVEN”-hour trip to Toronto later that day, the reunion was absolutely  6 and I can sincerely say I enjoyed every single minute of that   7     journey.

      Hailee is at that “I want to  8  it myself” stage of her life. And if you can just get over the “hurry-up syndrome” we acquire as  9, it is wonderful to witness. Who knew that putting a straw into the  10  in a juice box for the very first time could be such an earth-shattering (惊天动地的) event? Or being  11  enough to actually open the fridge door for the first time? Or putting on your own  12  on the right feet would be so  13?

      I'll never forget the look on her face the day she was able to  14 into my truck by herself. She finally  15 on my seat, holding onto the steering wheel (方向盘) and declared 16, “I did it!” And when she could actually put her own seat belt on—what a(n)  17!

    Have you ever watched a three-year-old 18 to sip a McDonald's milkshake through a straw? It is hard enough for an adult, too. And 19 every time the icy solution (溶液) touched her lips, you could see the 20 in her eyes. I learned that you can't hurry a child through a milkshake.