试题与答案

从两物标方位定位的系统误差公式σ=dεB/sinθ来分析()。A.两条位置线的交角愈

题型:单项选择题

题目:

从两物标方位定位的系统误差公式σ=dεB/sinθ来分析()。

A.两条位置线的交角愈小愈好

B.σ与θ成正比

C.应尽量观测离船较近的物标

D.以上三个都不对

答案:

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参考答案:解析:明朝,来中国传教的意大利传教士。万历十年(1582),耶稣会士利玛窦来到澳门,在广东、南京、南昌、苏州等地传教。1600年,他同宠迪我由南京来到北京,向明神宗进献天主像、圣母像、圣经、十字架...

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题型:阅读理解

阅读理解

    One day when Jack was walking inthe park, he saw a woman he knew sitting on a bench(长椅)with a dog beside her. The dog was looking up at the woman.

    Jack walked up to the woman and said, “Hello. Sue, how are you? May I sit and talk with you for a while?”

    "Of course, please sit down,”Sue said.

    Jack sat down next to Sue on the bench, and they talked quietly together.

    The dog continued to look up at Sue, as if waiting to be fed.

    “That's a nice dog”Jack said, pointing(指向)at the animal.

    “Yes, he's handsome. He's a bit of a mixture(混合) but that's not a bad thing. He's strong and healthy”

    "And hungry,” Jack said. “He hasn't taken his eyes off you. He thinks you've got some food for him.”

     "That's true,”Sue said, But I haven’t.”

    The two friends laughed and then Jack said, “Does your dog bite?”

    "No,” Sue said. “He's never bitten anyone. He's always gentle and good-tempered(好脾气).”

    Hearing this, Jack decided to pet the dog. He put out his hand and touched the animal's head. Immediately it jumped up and bit him.

    “Hey!” Jack shouted. “You said he didn't bite.”

    "No, I didn't,”Sue replied.  “You asked,if my dog bit, and I said no.

51. What did Jack do when he saw the woman?

    A. He walked past her.

    B. He asked to sit next to her.

    C. He spoke angrily to her.

    D. He spoke to her dog.

52. The dog looked_________.

    A. angrily at Jack                          B. sick

    C. as if he would bite Sue                   D. hungry

53. Jack thought that the dog

    A. was ill                                B. belonged to Sue

    C. was terrible                            D. belonged in a zoo

54. The underlined word “pet” should be ______________in Chinese.

    A.宠物              B.喜欢

    C.敲打              D.抚摸

55. From the story, we can know______________.

    A. Jack and Sue talked about the same dog

    B. Jack asked Sue a right question

    C. Jack was bitten by Sue's dog

    D. Jack asked Sue a wrong question

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