题干

基因兴奋剂是指向运动员体内导入新基因,从而改善运动员的耐力等运动能力,如将促红细胞增长素的基因注入马拉松运动员体内,运动员就可轻轻松松跑完全程,并突破2 h大关。这项技术的生物学原理是

A:基因突变

B:基因重组

C:染色体结构变异

D:染色体数目变异

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A

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    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