题干

我们把钟表的时针、分针及两针尖所连线段所围成的图形面积叫做这个钟表的该时刻面积.如图,△AOB的面积即为该钟表8点30分的时刻面积,那么从9时到10时,钟表的时刻面积等于该钟表8点30分的时刻面积的时刻数有(   )

A:4个

B:3个

C:2个

D:1个

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答案(点此获取答案解析)

B

同类题3

任务型阅读

    Living with other people can be difficult, especially when each person has their own ideas about how they want to live. ____. Taking a few simple steps will help you share your living space harmoniously.

    Discuss your expectations ahead of time.

    ____. This applies to finances, food, possessions, use of common areas, loud activities or parties, quiet hours, and so on.

    Divide responsibilities.

    Make a plan to divide up responsibilities and chores(家常杂务)between you and your roommate. For example, if your roommate is a good cook and you are not, ____. It may also be a good idea to set up a chores schedule, where you will take turns cleaning the bathroom, raking out the trash and so on.

    ____.

    Not everyone has the same ideas about day to day living as you do. Take your roommate's feelings into consideration. For instance, if you are dying to throw a party on Thursday night but your roommate has a final early the next morning, agree to postpone the party till Friday evening, instead.

    Communicate effectively.

    Communication is key in making the relationship work. If a problem comes up, it's better to talk about it right away than to ignore it. For example, say “Chris, it upsets me when I wake up to find all the milk gone. If you use the last of something, can you please add it to the list?” If you simply cannot communicate openly and there is tension all the time,____.

A. Be prepared to compromise

B. Create a roommate agreement on Internet use

C. ask him or her to cook if you'll clean up afterward

D. you may as well find a new roommate

E. Though having a roommate can be challenging, it can also be enjoyable and fun from the other

F. People may have different religious or political views that could cause conflict

G. Talk about what each of you needs and wants in advance

同类题5

阅读理解。阅读下列短文, 从给的四个选项 (A、B、C和D) 中, 选出最佳选项。   

    The Renaissance,considered by modern scholars to have been the time between 1,300 and 1,600,was a period of European history when many new inventions and beliefs came into being.

    The Renaissance is traced back to rich Italian cities such as Florence,Milan,and Venice.In these cities businessmen started to spend their extra money on things like painting and education,and to consider new techniques of banking and systems of government.A new type of scholar,the humanist(人文主义者)arose.Humanism was concerned with humankind and culture.Latin and Greek,literature and philosophy,music and mathematics were among the subjects humanists studied.

    The Renaissance gave rise to new forms of painting and  sculpture.During  the  Renaissance,artists were no longer regarded as mere artisans(工匠).Many artists drew on mathematics in order to become more accurate in their measurements(度量)and to make sure an object was presented in realistic proportions.They also studied the way light hits objects and the ways our eyes perceive it.A new kind of paint,called oil paint,was invented.

    The Renaissance affected all of the society.Many people became interested in politics,and the world outside their towns.They became explorers,businessmen,etc.The effect on religion was especially strong.In the Middle Ages people were primarily concerned with serving the church and getting to heaven.But the increase in arts  and education gave  people things to look forward to in life,and made them lose interest in the church.

    The  Renaissance  produced  many  great minds.Leonardo da Vinci was one of the greatest,although he was not regarded that way at the time.Among his many works of art were Mona Lisa and The Last Supper.He is also regarded as a great inventor,and is credited for coming up with the idea of the helicopter.