One possible benefit of the experiment discussed in the passage is

单选题
One possible benefit of the experiment discussed in the passage is _______

A．less crowded cities
B．victory over death
C．protection against fatal injury
D．fewer deaths from heart attacks

参考答案D

解析:
在该实验中，科学家使母猴麻醉入睡，在它身旁放满冰袋。当它体温达到28度时开始抽血．母猴血压下降．6时后心跳和呼吸停止，进入临床死亡状态。20分钟后它体温降到22度，科学家向心脏的方向给它输血并进行人工呼吸。过了2分钟，母猴心脏开始跳动；又过了15分钟，呼吸启动；4小时后睁眼抬头：6小时后科学家给它注射青霉素，它就开始活蹦乱跳了。这个实验表明，冷冻法延长临床死亡的好处之一就是可以减少心脏病突发引起的死亡。

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单选题
根据下面内容，回答题
I've loved my mother's desk since I was just tall enough to see above the top of it as mother sat writing letters. Standing by her chair, looking at the ink bottle, pens, and white paper, I decided that the act of writing must be the more wonderful thing in the world. Years later, during her final illness, mother kept different things for my sister and brother."But the desk," she'd said again, "it's for Elizaheth."
I never saw her angry, never saw her cry. I knew she loved me; she showed it in acdou. But as a young girl, I wanted heart-to-heart talks between mother and daughter. They never happened.And a gulf opened between us. I was "too emotional". But she lived "on the surface".
As years passed I had my own family. I loved my mother and thanked her for our happy family. I wrote to her in careful words and asked her to let me know in any way she ebose that she did forgive me. I posted the letter and waited for her answer. None came. My hope turned to disappointment, then little interest and, finally, peace-it seemed that nothing happened. I couldn't be sure that the letter had even got to mother. I only knew that I had written it, and l could stop trying to make her into someone she was not.
Now the present of her desk told, as she'd never been able to, that she was pleased that writing was my chosen work. I cleaned the desk carefully and found some papers inside--a photo of my father and a one-page letter, folded and refolded many times. Give me an answer, my letter asks, in any way you choose. Mother, you always chose the act that speaks louder than words.
The writer began to love her mother's desk

A．after mother died
B．before she became a writer
C．when she was a child
D．when mother gave it to her

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单选题
The passage shows that _______

A．mother was cold on the surface but kind in her heart to her daughter
B．mother was too serious about everything her daughter had done
C．mother cared much about her daughter in words
D．mother wrote to her daughter in careful words

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单选题
The word "gulf" in the passage means _______

A．deep understanding between the old and the young
B．different ideas between the mother and the daughter
C．free talks between mother and daughter
D．part of the sea going far in land

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