题干

已知集合A={x|2≤x≤8},B={x|1<x<6},C={x|x>a},U=R.
上一题 下一题 0.0难度 选择题 更新时间:2019-07-08 03:44:00

答案(点此获取答案解析)

同类题3

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。

How To Become Smarter

    There are three things that will get you ahead in life: Good looks, smarts and being considered as being smart. The first is God-given. ____ In this article we explore some different ways to become smarter.

   Go to college, and get an education.____ It means that you will have been exposed to many different ideas and hopefully you will have learned how to think. Being able to think outside the box and for yourself are features smart people possess.

    Read books and educational magazine.____ Educational magazines such as Discovery or National Geographic are a wealth of knowledge that you can share with others, thus making you sound very smart. If you do watch television, try watching something where you can learn such as the History Channel, Discovery etc.

    Expand your vocabulary. Try to learn one new word a week. It does not seem like much, but adding 52 new word to your vocabulary will make you appear much smarter. Subscribing to vocabulary. com is a good start.____This way you are actually getting 365 words a year, but that is usually more than most people can absorb.

    ____ Uneducated people and people not considered as being smart tend to do this. They hear an outrageous(骇人的) claim and they repeat it to the nearest ear. You can do much harm to your quest for being smart if you are known for giving bad information.

A. That is my exact point.

B. And unluckily most of us are not good-looking.

C. You will have a new word sent to your e-mail address daily.

D. The programs actually provide you with information you can see.

E. Reading books works the brain out more than viewing television.

F. Do not repeat everything people tell you until you know that it is true.

G. College does not necessarily mean you will be smarter, just educated.

同类题4

阅读下面文段后按要求答题。
                                                                                                                                 读(节选)  
                                                                                               人之一生.读之一生    读海,胸怀将变得辽阔
                                                                                               从春读到夏,从小读到大  读月,方知阴晴圆缺
                                                                                               读雨,方知万物可以滋润,心灵能够洗涤    

                                                                                               读日,便不再惋惜日近黄昏
                                                                                               读雪,能领悟到嚣的纯洁,感受到冬的春意             用心品读,细细感悟
                                                                                                读风,就能触摸d4)11的脉搏,聆听天地的呼吸      阴雨中能读出晴空
                                                                                               读霞,才能于苍茫中发现辉煌,展示自己韵不屈     枯黄中能读出翠绿
                                                                                               读花,你学会倾听     沙漠中能读出清泉
                                                                                               读树,你学套成长       黑暗中能读出晨曦
                                                                                               读山,你学会攀登                                     

                                                                                                                                                                                                                                          (诗歌有删改)