在数据库管理系统提供的数据语言中，负责数据的查询及增、删、改等操作的是A．数据定义语

Time to Dance

Are you the kind of person who likes to move with music? It's a natural thing to do. Even little children start jumping up and down when they hear music.

Scientists say that animals dance, too_____小题1:______ . The "dances" of animals send messages to other animals. But when people dance, they express feelings about life and love, or about these very human experiences.

Dances are good for you in many ways. For one thing, dancing is good for you physically. It makes your heart work and makes you breathe fast. _____小题2:______. If you go dancing often, you can keep physically fit. You may feel very tired after dancing, but you’ll probably also feel relaxed and happy. This is another important point about dancing. It gives you a chance to express your feelings and feel better about yourself_____小题3:______, dancing helps those feelings go away.

_____小题4:______ Some dances are for couples and some are for groups. But all kinds of dances give you a chance to meet new people or to do something enjoyable with friends.

A．But their dancing is different

B．And finally, it's a social activity

C．If people like dancing very much

D．If you are angry or upset about somethingE. It also makes you use your arms and your legs

This monument image was designed to stir up emotions of awe and respect, but could scarcely evoke feelings of warmth and affection.

A．regulate

B．agitate

C．tangle

D．teem

一位病人的眼部有如图表现，则该病的特征性表现是（）

A.疼痛

B.畏光

C.流泪

D.局限性结节样隆起

E.局限性充血

发动机怠速时，汽缸上部发出清晰的敲击声，像用小锤敲击水泥地板一样的“塔塔”声冷车时明显，，热车时响声减弱消失，某缸断火后响声减弱或者消失，原因是（）

A、活塞与汽缸壁的间隙过大

B、活塞与汽缸壁的间隙过小

C、活塞与活塞环的靠口间隙过大

D、火快

（）是银行的核心竞争力。

A.质量第一

B.诚信至上

C.定位准确

D.品牌