题干

下列有关ATP的相关叙述中,正确的是(  )

①人体成熟的红细胞、蛙的红细胞、鸡的红细胞中均能合成ATP   

②若细胞内Na+浓度偏高,为维持Na+浓度的稳定,细胞消耗ATP的量增加   

③ATP中的“A”与构成DNA、RNA中的碱基“A”是同一物质

④ATP是生物体生命活动的直接供能物质,但在细胞内含量很少   

⑤能进行有氧呼吸的细胞不一定含有线粒体但一定含有相关的酶

⑥ATP中的能量可以于光能、化学能,也可转化为光能和化学能.

A:①②④⑤⑥

B:②③④⑥

C:①②③⑤⑥

D:①②③⑥

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A

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    During the war, my husband was stationed at an army camp in a desert in California. I went to live there in order to be1 him. I hated the place .I had never 2been so unhappy . My husband was ordered out on a long-term duty, and I was left in a tiny shack(棚屋) alone. The heat was3-almost 125 0F even in the shade of a cactus(仙人掌).4a soul to talk to . The wind blew non-stop ,and all the food I ate ,and the every air I breathed, were 5 with sand , sand , sand !

    I was so sorry for myself that I wrote to my parents. I told them I was 6 and coming back home. I said I couldn't stand it one minute longer. I7 be in prison! My father answered my8with just two lines-two lines that will always sing in my9- two lines that completely changed my life :

    Two men looked out from prison bars

    One saw the mud ,the other saw the stars

    I read those two lines10I was ashamed of myself. I made up my mind I would find out what was good in my present11 I would look for the stars.

    I made friends with the natives, and their12amazed me. They gave me presents of their favorite artworks which they had13to sell to tourists . I studied the delightful forms of the cactus . I watched for the desert sunsets, and14for seashells that had been left there millions of years ago when the desert had been an ocean15

    What brought about this16 change in me ? The desert hadn't changed ,17 I had . I had changed my18.And by doing so ,I changed an unhappy experience into the most amazing19of my life . I was excited by this new world that I had discovered I had looked out of my self-created prison and20the stars