起动清洁后的分油机，若发现有振动，通常原因是进油过猛。

阅读理解。

     A hobby is not a job or a school subject.  A hobby is something you enjoy doing in your spare time.  

 It's not something you need to do.  It's just fun.  Some people make model ships, keep pets, plant flowers,

  play computer games or chat on the Internet.  Some paint pictures or dance to music.  Some collect

 everything from stamps to seashells (海贝壳)...People take up hobbies because they think these activities

  can bring them many things like happiness, friendship and knowledge.  Anyone, rich or poor, old or

 young, sick or well, can have a hobby.  A hobby will make your life colorful.

1. What is a hobby?

    A. A job.

    B. A school subject.

    C. Something interesting.

    D. Something you enjoy doing in your spare time.

2. How many hobbies are mentioned(提到) in this passage?

    A. 7.

    B. 8.

    C. 9.

    D. 10.

3. Hobbies can bring people _______.

    A. much money

    B. health

    C. happiness, friendship and knowledge

    D. lots of trouble

4. What kind of people can have a hobby?

    A. Rich or poor.

    B. Old or young.

    C. Sick or well.

    D. A、B and C.

5. When do people often take up hobbies?

    A. In their work time.

    B. In the daytime.

    C. In their free time.

    D. In the holiday.

女性，23岁。瘦高，查体可见肾下垂，该体征是指（）

A.深呼气时能触到1/2以上的肾

B.深呼气时能触到1/2以下的肾

C.深吸气时能触到1/2以上的肾

D.深吸气时能触到1/2以下的肾

E.深吸气时能触到肾下缘

According（）the report，the ship hit the wharf when berthing.

A.of

B.to

C.for

D.on

简述电力系统承受大扰动能力的三级安全稳定标准。

矿床工业价值的因素的确定：