题干

晓黎在实验时连接了如图所示的电路,闭合开关后发现只有灯泡L1发光,电流表、电压表均有示数。关于电路中L1、L2的连接方式和L2不发光的原因,下列说法正确的是(    )

A:灯泡L1和L2串联,L2的灯丝断了

B:灯泡L1和L2串联,L2被短路了

C:灯泡L1和L2并联,L2与灯座接触不良

D:灯泡L1和L2并联,L2的实际功率太小

上一题 下一题 0.0难度 选择题 更新时间:2017-07-28 11:03:04

答案(点此获取答案解析)

B

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    First published in 2001, the book Life of Pi written by Canadian author Yann Martel won the Man Booker Prize and an Asian American Prize for Literature. It is the story of a young boy named Pi who spends 227 days at sea with a small group of animals after disaster strikes their ship and is an account of his journey of survival and hardship.

    Piscine “Pi” Molitor Patel, on whom Life of Pi is based, is a young boy living in Pondicherry, India, where his father owns a zoo. The story starts when Patel's family decide to move to Canada, along with their zoo animals for their new home.

    However, because of the bad weather, the ship sinks. Pi along with an orangutan (猩猩), an injured zebra, a hyena (鬣狗) and a Bengal tiger named Richard Parker are the only survivors who take shelter in a small lifeboat. Both the injured zebra and the orangutan are soon killed and eaten by the hyena. The tiger in turn kills and eats the hyena, leaving just the two of them alone on the boat now.

    In an effort to avoid being eaten by Richard Parker, Pi acts himself as the head of the group and remains safe from harm. Since he does not want the tiger to die for fear of going mad by being alone on the boat, he fishes and feeds the two of them in order to stay alive.

    The life of Pi then enters its third stage when their lifeboat washes up on the shores of Mexico and the tiger escapes into a nearby forest leaving Pi alone. After the Mexicans refuse to believe Pi's story, he changes his tale by replacing the animals with his mother, a cook and a sailor and asks the Mexicans which one they prefer. They prefer hearing the first story though they do not believe a word of it.

    In my view, Life of Pi is a must read book for all those who love reading.