普通轻型（单千斤索）单吊杆的千斤索用于控制：（）A.吊杆左右回转 B.吊杆俯仰 C.

交叉支撑装臵的主要作用？

根据对话内容填人适当的词，使对话完整、通顺。

A: Look, it is a 小题1:_ of my family.

B: Oh, it is a nice picture, Tom. Who is this

小题2:______

A: It’s my father.

B: Is the 小题3:___ your sister?

A: Yes, she is.

B: How 小题4:__    is she?

A: She’s ten.

B: 小题5:___ you in the same school?

A: No, we aren’t.

B: Is the woman your 小题6:____

A: Yes, 小题7:__ a teacher.

B: She looks young (年轻的).

A: I look like her.

B." 小题8:__ that baby?

A: Guess (猜).

B: Is 小题9:__ your brother?

A: No.

B: Oh, it’s 小题10:___

A: That’s right. I look lovely （可爱的).

The home of the future won’t be completely different and we will be living in houses and flats just as we do today．But people will want to shape their homes to match their dreams．No two homes will be the same．People will be able to buy “house kits” containing a basic house structure, with movable walls, doors and windows．They will put together the different parts to create the home they want．

Many jobs that we do today will disappear, others will still exist but will change and new jobs will be created. Skilled workers such as builders, gardeners and electricians won’t disappear because machines can’t replace them. Teachers will still exist because students need human contact. But they will be using modern technology in class more and students will be working more from home. The medical technology revolution and space travel will create new jobs which we can only imagine today．

Space holidays will develop in the future, but these holidays won’t be for everyone because they won’t be cheap. Short space trips will develop first, then space hotels will orbit the earth where it will be possible to have a longer vacation. By the end of the next century, there will be holiday centres on the moon with leisure facilities for families．

Paper won’t exist in the future. Instead, there will be e-paper which people will be able to use over and over again. This will develop in order to save natural resources. E-newspapers and e-magazines will replace traditional newspapers and magazines and we will download information and news articles from the Internet every day onto our reuseable paper．

The laws of physics tell us that the earth is going to disappear some time in the future．This isn’t going to happen tomorrow but scientists predict that it will happen in five billion years when our sun explodes (爆炸)．We will have to explore the universe and find another home. At some point in the distant future, either we stay on the earth and die with it, or we leave and move to another planet. There won’t be any other choice.

小题1:Homes of the future will ________．

A．be completely different from those of today

B．be very similar to our homes

C．all be different from one another

D．be movable as you want小题2:Space trips and staying in space hotels will ________．

A．become a very common way to spend a holiday

B．be the best holiday option for families

C．attract a lot of people

D．still only be for very rich people小题3:E-paper will replace traditional paper because ________．

A．we will use it again

B．it won’t waste natural resource

C．it will be cheaper to produce

D．it will be convenient to carry小题4:We will have move to another planet ________．

A．if we want to save the human race

B．when the sun explodes

C．when the earth disappears

D．when the earth is too crowded to fill people on

用二分法插入排序方法进行排序，被排序的表(或序列)应采用的数据结构是______。

A．单链表

B．数组

C．双向链表

D．散列表

亚健康的预防保健措施（）。

A.保持心态平和

B.学会爱他人

C.保持情绪卫生

D.学会爱自己