下列能减少斗轮机运行时震动的方法()。A、快慢速切换会引起剧烈振动,应待车停后再慢速

题型:多项选择题

问题:

下列能减少斗轮机运行时震动的方法()。

A、快慢速切换会引起剧烈振动,应待车停后再慢速调车;

B、取料时选用深取少进或薄取多进的方法;

C、控制取料深度,不要挖到地面;

D、碰到大石块应先清理后在取煤。

考点:北京住院医师耳鼻咽喉科Ⅰ阶段北京住院医师耳鼻咽喉科Ⅰ阶段题库
题型:多项选择题
阅读理解。
     Body language is an important part ofcommunication(交流).If you want to communicate well,it's important to understand how you can (and can't) use your body to say what you mean, especially when you're in a foreign country.
     If a person is bored, he won't look at the person who is talking to him. He will find other things to do. He may also keep looking at his watch or a clock. If a person
is open to you, his arms and legs will not be crossed (交叉的). And if a person is relaxed, you will know it by looking at his body, even his breathing(呼吸) is slower.
     Here are some examples of body language:
                        
Body languageFeeling 
Sitting with legs  crossed Bored
Sitting with legsapartOpen, relaxed 
Walking  with hands in pockets, head down      Sad
Hand to cheek     ThinkingthingingHands   
clasped (握紧 ) behindback    Angry
1. What can you do if you want to communicate well?
A.Walk with hands in pockets.
B.Use body language to say what I mean.
C.Speak in public
D.Say something slowly.
2. lfa person is______,he won't look at the person who is talking.
A. boredB. tired
C. happyD. open
3. If a person is relaxed,____.
A. he will find other things to look at
B. he will speak louder
C.his breathing will be slower
D. his breathing will bequicker
4. Which of the following is NOT true?
A. Walkingwithhead down, a person may sad.
B. When a person was his hands angry, clasped behind back.
C. Sitting with legs apart, a person may be open and relaxed.
D. If a person is open to you, his arms and legs will be crossed.
5. What's the best title for the passage?
A. Communication
B. Body Language
C. Some Feelings
D. Health
题型:多项选择题

根据句意完成已给出首字母的单词,使补全后的句子语法正确,意义通顺。

1. He made great p           in spoken English.

2. — What's the c           like in Africa?

    — Oh, it's hot and rainy.

3.After entering the WTO, more f           will come to our country for business.

4. Macao was taken back by China at the end of the t           century.

5. My friends e           me not to give up and keep on fighting.

6. The disabled person came across many d           when he sailed around the world.

7. Many animals died on the island because people destroyed the e           of the island.

8. My k           of chemistry is very poor.

9. If you want keep something a m          , keep your lips closed.

10. Most of the things which were described in the book The A           of Tom Sawyer

      really happened to the writer himself.

题型:多项选择题

节能减排、低碳出行是我们倡导的生活方式,“低碳”指的是尽量减少二氧化碳的排放。下列有关二氧化碳的说法正确的是 (    )

A.二氧化碳通人紫色石蕊溶液,溶液变为红色,说明二氧化碳具有酸性

B.二氧化碳的过度排放会加剧温室效应,因此应禁止使用化石燃料

C.二氧化碳和一氧化碳的组成元素相同,在一定条件下可以相互转化

D.进入久未开启的菜窖之前,必须做灯火试验,是因为二氧化碳有毒

题型:多项选择题

哮喘活动期行急诊手术()。

A.不必使用支气管扩张剂

B.须使用支气管扩张剂

C.须使用非甾体类抗炎药

D.须使用钙剂

E.须使用Ca2+拮抗剂

题型:多项选择题

检务部门签发证单出境应在5个工作日完成,入境应在10个工作日内完成。检验检疫机构签发的以验讫日期为签发日期。()

更多题库